Mozilla Thunderbird Email client

JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free

CVE-2025-3028 - April 01, 2025

JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability affects Firefox < 137, Firefox ESR < 115.22, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9.

A crafted URL containing specific Unicode characters could have hidden the true origin of the page

CVE-2025-3029 - April 01, 2025

A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9.

Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8

CVE-2025-3030 - April 01, 2025

Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9.

An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function

CVE-2025-3031 - April 01, 2025

An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. This vulnerability affects Firefox < 137 and Thunderbird < 137.

Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks

CVE-2025-3032 - April 01, 2025

Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability affects Firefox < 137 and Thunderbird < 137.

After selecting a malicious Windows `.url` shortcut from the local filesystem, an unexpected file could be uploaded

CVE-2025-3033 - April 01, 2025

After selecting a malicious Windows `.url` shortcut from the local filesystem, an unexpected file could be uploaded. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 137 and Thunderbird < 137.

Memory safety bugs present in Firefox 136 and Thunderbird 136

CVE-2025-3034 - April 01, 2025

Memory safety bugs present in Firefox 136 and Thunderbird 136. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 137 and Thunderbird < 137.

Memory Corruption

Certain crafted MIME email messages

CVE-2025-26696 - March 10, 2025

Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8.

When requesting an OpenPGP key

CVE-2025-26695 - March 10, 2025

When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could have learned the length of the requested email address. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8.

When String.toUpperCase() caused a string to get longer it was possible for uninitialized memory to be incorporated into the result string This vulnerability affects Firefox < 136 and Thunderbird < 136.

CVE-2025-1942 - March 04, 2025

When String.toUpperCase() caused a string to get longer it was possible for uninitialized memory to be incorporated into the result string This vulnerability affects Firefox < 136 and Thunderbird < 136.

An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access

CVE-2025-1932 - March 04, 2025

An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access. Only affected version 122 and later. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

Memory safety bugs present in Firefox 135 and Thunderbird 135

CVE-2025-1943 - March 04, 2025

Memory safety bugs present in Firefox 135 and Thunderbird 135. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136 and Thunderbird < 136.

Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7

CVE-2025-1938 - March 04, 2025

Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7

CVE-2025-1937 - March 04, 2025

Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

A web page could trick a user into setting that site as the default handler for a custom URL protocol

CVE-2025-1935 - March 04, 2025

A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript

CVE-2025-1934 - March 04, 2025

It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering garbage collection when the engine was not expecting it. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process

CVE-2025-1930 - March 04, 2025

On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory

CVE-2025-1933 - March 04, 2025

On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

It was possible to cause a use-after-free in the content process side of a WebTransport connection

CVE-2025-1931 - March 04, 2025

It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

Memory safety bugs present in Firefox 134 and Thunderbird 134

CVE-2025-1020 9.8 - Critical - February 04, 2025

Memory safety bugs present in Firefox 134 and Thunderbird 134. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 135 and Thunderbird < 135.

Memory Corruption

A race condition could have led to private browsing tabs being opened in normal browsing windows

CVE-2025-1013 - February 04, 2025

A race condition could have led to private browsing tabs being opened in normal browsing windows. This could have resulted in a potential privacy leak. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

The z-order of the browser windows could be manipulated to hide the fullscreen notification

CVE-2025-1019 4.3 - Medium - February 04, 2025

The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.

Clickjacking

The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user

CVE-2025-1018 5.3 - Medium - February 04, 2025

The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.

Clickjacking

Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6

CVE-2025-1017 9.8 - Critical - February 04, 2025

Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Memory Corruption

Memory safety bugs present in Firefox 134

CVE-2025-1016 9.8 - Critical - February 04, 2025

Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Memory Corruption

The Thunderbird Address Book URI fields contained unsanitized links

CVE-2025-1015 5.4 - Medium - February 04, 2025

The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the Other field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird, and that page could execute (unprivileged) JavaScript. This vulnerability affects Thunderbird < 128.7 and Thunderbird < 135.

Certificate length was not properly checked when added to a certificate store

CVE-2025-1014 8.8 - High - February 04, 2025

Certificate length was not properly checked when added to a certificate store. In practice only trusted data was processed. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Improper Certificate Validation

A race during concurrent delazification could have led to a use-after-free

CVE-2025-1012 7.5 - High - February 04, 2025

A race during concurrent delazification could have led to a use-after-free. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Dangling pointer

A bug in WebAssembly code generation could have lead to a crash

CVE-2025-1011 8.8 - High - February 04, 2025

A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash

CVE-2025-1010 8.8 - High - February 04, 2025

An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Dangling pointer

An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash

CVE-2025-1009 9.8 - Critical - February 04, 2025

An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Dangling pointer

Thunderbird displayed an incorrect sender address if the From field of an email used the invalid group name syntax

CVE-2025-0510 6.5 - Medium - February 04, 2025

Thunderbird displayed an incorrect sender address if the From field of an email used the invalid group name syntax that is described in CVE-2024-49040. This vulnerability affects Thunderbird < 128.7 and Thunderbird < 135.

The WebChannel API

CVE-2025-0237 - January 07, 2025

The WebChannel API, which is used to transport various information across processes, did not check the sending principal but rather accepted the principal being sent. This could have led to privilege escalation attacks. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash

CVE-2025-0238 - January 07, 2025

Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Firefox ESR < 115.19, Thunderbird < 134, and Thunderbird < 128.6.

When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site

CVE-2025-0239 - January 07, 2025

When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free

CVE-2025-0240 - January 07, 2025

Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

When segmenting specially crafted text, segmentation would corrupt memory leading to a potentially exploitable crash

CVE-2025-0241 - January 07, 2025

When segmenting specially crafted text, segmentation would corrupt memory leading to a potentially exploitable crash. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

Memory safety bugs present in Firefox 133

CVE-2025-0242 - January 07, 2025

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 115.18, Firefox ESR 128.5, Thunderbird 115.18, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Firefox ESR < 115.19, Thunderbird < 134, and Thunderbird < 128.6.

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5

CVE-2025-0243 - January 07, 2025

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

Memory Corruption

Memory safety bugs present in Firefox 133 and Thunderbird 133

CVE-2025-0247 - January 07, 2025

Memory safety bugs present in Firefox 133 and Thunderbird 133. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134 and Thunderbird < 134.

Memory Corruption

Mozilla Firefox and Thunderbird Double-Free Vulnerability in PKCS7 Decoder

CVE-2024-11704 - November 26, 2024

A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specific conditions, the same symmetric key could have been freed twice, potentially leading to memory corruption. This vulnerability affects Firefox < 133, Thunderbird < 133, Firefox ESR < 128.7, and Thunderbird < 128.7.

Null Pointer Dereference in Mozilla Firefox and Thunderbird's pk12util SEC_ASN1DecodeItem_Util Funct

CVE-2024-11706 - November 26, 2024

A null pointer dereference may have inadvertently occurred in `pk12util`, and specifically in the `SEC_ASN1DecodeItem_Util` function, when handling malformed or improperly formatted input files. This vulnerability affects Firefox < 133 and Thunderbird < 133.

Firefox and Thunderbird: Address Bar Domain Spoofing Vulnerability

CVE-2024-11701 - November 26, 2024

The incorrect domain may have been displayed in the address bar during an interrupted navigation attempt. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 133 and Thunderbird < 133.

Firefox and Thunderbird Android Private Browsing Clipboard Leak Vulnerability

CVE-2024-11702 - November 26, 2024

Copying sensitive information from Private Browsing tabs on Android, such as passwords, may have inadvertently stored data in the cloud-based clipboard history if enabled. This vulnerability affects Firefox < 133 and Thunderbird < 133.

Firefox and Thunderbird: Data Race Vulnerability in PlaybackParams Structure

CVE-2024-11708 - November 26, 2024

Missing thread synchronization primitives could have led to a data race on members of the PlaybackParams structure. This vulnerability affects Firefox < 133 and Thunderbird < 133.

Firefox and Thunderbird UI Spoofing Vulnerability in Tab Interface

CVE-2024-11692 - November 26, 2024

An attacker could cause a select dropdown to be shown over another tab; this could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

Windows: Missing Executable File Warning for .library-ms Files in Firefox and Thunderbird

CVE-2024-11693 - November 26, 2024

The executable file warning was not presented when downloading .library-ms files. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

Mozilla Firefox and Thunderbird URL Spoofing Vulnerability via Arabic Script and Whitespace

CVE-2024-11695 - November 26, 2024

A crafted URL containing Arabic script and whitespace characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

Firefox and Thunderbird Keypress Event Handling Bypass Vulnerability

CVE-2024-11697 - November 26, 2024

When handling keypress events, an attacker may have been able to trick a user into bypassing the "Open Executable File?" confirmation dialog. This could have led to malicious code execution. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

Multiple Memory Safety Vulnerabilities in Mozilla Firefox and Thunderbird

CVE-2024-11699 - November 26, 2024

Memory safety bugs present in Firefox 132, Firefox ESR 128.4, and Thunderbird 128.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

Firefox and Thunderbird Tapjacking Vulnerability

CVE-2024-11700 - November 26, 2024

Malicious websites may have been able to perform user intent confirmation through tapjacking. This could have led to users unknowingly approving the launch of external applications, potentially exposing them to underlying vulnerabilities. This vulnerability affects Firefox < 133 and Thunderbird < 133.

Thunderbird OpenPGP Remote Content Plaintext Disclosure Vulnerability

CVE-2024-11159 4.3 - Medium - November 13, 2024

Using remote content in OpenPGP encrypted messages can lead to the disclosure of plaintext. This vulnerability affects Thunderbird < 128.4.3 and Thunderbird < 132.0.1.

The origin of an external protocol handler prompt could have been obscured using a data: URL within an `iframe`

CVE-2024-10460 5.3 - Medium - October 29, 2024

The origin of an external protocol handler prompt could have been obscured using a data: URL within an `iframe`. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

An attacker could have caused a use-after-free when accessibility was enabled, leading to a potentially exploitable crash

CVE-2024-10459 7.5 - High - October 29, 2024

An attacker could have caused a use-after-free when accessibility was enabled, leading to a potentially exploitable crash. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.

Dangling pointer

A permission leak could have occurred from a trusted site to an untrusted site via `embed` or `object` elements

CVE-2024-10458 7.5 - High - October 29, 2024

A permission leak could have occurred from a trusted site to an untrusted site via `embed` or `object` elements. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.

Potential race conditions in IndexedDB could have caused memory corruption, leading to a potentially exploitable crash

CVE-2024-10468 5.3 - Medium - October 29, 2024

Potential race conditions in IndexedDB could have caused memory corruption, leading to a potentially exploitable crash. This vulnerability affects Firefox < 132 and Thunderbird < 132.

Race Condition

Memory safety bugs present in Firefox 131, Firefox ESR 128.3, and Thunderbird 128.3

CVE-2024-10467 8.8 - High - October 29, 2024

Memory safety bugs present in Firefox 131, Firefox ESR 128.3, and Thunderbird 128.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

Memory Corruption

By sending a specially crafted push message, a remote server could have hung the parent process, causing the browser to become unresponsive

CVE-2024-10466 7.5 - High - October 29, 2024

By sending a specially crafted push message, a remote server could have hung the parent process, causing the browser to become unresponsive. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

A clipboard "paste" button could persist across tabs which allowed a spoofing attack

CVE-2024-10465 6.5 - Medium - October 29, 2024

A clipboard "paste" button could persist across tabs which allowed a spoofing attack. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

Authentication Bypass by Spoofing

Repeated writes to history interface attributes could have been used to cause a Denial of Service condition in the browser

CVE-2024-10464 6.5 - Medium - October 29, 2024

Repeated writes to history interface attributes could have been used to cause a Denial of Service condition in the browser. This was addressed by introducing rate-limiting to this API. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

Out-of-bounds Read

Video frames could have been leaked between origins in some situations

CVE-2024-10463 6.5 - Medium - October 29, 2024

Video frames could have been leaked between origins in some situations. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.

Side Channel Attack

Truncation of a long URL could have allowed origin spoofing in a permission prompt

CVE-2024-10462 6.5 - Medium - October 29, 2024

Truncation of a long URL could have allowed origin spoofing in a permission prompt. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

Authentication Bypass by Spoofing

In multipart/x-mixed-replace responses, `Content-Disposition: attachment` in the response header was not respected and did not force a download, which could

CVE-2024-10461 6.1 - Medium - October 29, 2024

In multipart/x-mixed-replace responses, `Content-Disposition: attachment` in the response header was not respected and did not force a download, which could allow XSS attacks. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.

XSS

An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines

CVE-2024-9680 9.8 - Critical - October 09, 2024

An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines. We have had reports of this vulnerability being exploited in the wild. This vulnerability affects Firefox < 131.0.2, Firefox ESR < 128.3.1, Firefox ESR < 115.16.1, Thunderbird < 131.0.1, Thunderbird < 128.3.1, and Thunderbird < 115.16.0.

Dangling pointer

A website configured to initiate a specially crafted WebTransport session could crash the Firefox process leading to a denial of service condition

CVE-2024-9399 7.5 - High - October 01, 2024

A website configured to initiate a specially crafted WebTransport session could crash the Firefox process leading to a denial of service condition. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://pdf.js` origin

CVE-2024-9393 7.5 - High - October 01, 2024

An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://pdf.js` origin. This could allow them to access cross-origin PDF content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin

CVE-2024-9394 7.5 - High - October 01, 2024

An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin. This could allow them to access cross-origin JSON content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

A missing delay in directory upload UI could have made it possible for an attacker to trick a user into granting permission

CVE-2024-9397 6.1 - Medium - October 01, 2024

A missing delay in directory upload UI could have made it possible for an attacker to trick a user into granting permission via clickjacking. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

Clickjacking

By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements

CVE-2024-9398 5.3 - Medium - October 01, 2024

By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

Memory safety bugs present in Firefox 130, Firefox ESR 128.2, and Thunderbird 128.2

CVE-2024-9402 - October 01, 2024

Memory safety bugs present in Firefox 130, Firefox ESR 128.2, and Thunderbird 128.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

Memory safety bugs present in Firefox 130, Firefox ESR 115.15, Firefox ESR 128.2, and Thunderbird 128.2

CVE-2024-9401 - October 01, 2024

Memory safety bugs present in Firefox 130, Firefox ESR 115.15, Firefox ESR 128.2, and Thunderbird 128.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

A potential memory corruption vulnerability could be triggered if an attacker had the ability to trigger an OOM at a specific moment during JIT compilation

CVE-2024-9400 - October 01, 2024

A potential memory corruption vulnerability could be triggered if an attacker had the ability to trigger an OOM at a specific moment during JIT compilation. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

It is currently unknown if this issue is exploitable but a condition may arise where the structured clone of certain objects could lead to memory corruption

CVE-2024-9396 - October 01, 2024

It is currently unknown if this issue is exploitable but a condition may arise where the structured clone of certain objects could lead to memory corruption. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

A compromised content process could have allowed for the arbitrary loading of cross-origin pages

CVE-2024-9392 - October 01, 2024

A compromised content process could have allowed for the arbitrary loading of cross-origin pages. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

Memory safety bugs present in Firefox 130

CVE-2024-9403 - October 01, 2024

Memory safety bugs present in Firefox 130. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 131 and Thunderbird < 131.

An error in the ECMA-262 specification relating to Async Generators could have resulted in a type confusion

CVE-2024-7652 - September 06, 2024

An error in the ECMA-262 specification relating to Async Generators could have resulted in a type confusion, potentially leading to memory corruption and an exploitable crash. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

When aborting the verification of an OTR chat session

CVE-2024-8394 6.5 - Medium - September 06, 2024

When aborting the verification of an OTR chat session, an attacker could have caused a use-after-free bug leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 128.2.

Dangling pointer

Memory safety bugs present in Firefox 129, Firefox ESR 128.1, and Thunderbird 128.1

CVE-2024-8387 9.8 - Critical - September 03, 2024

Memory safety bugs present in Firefox 129, Firefox ESR 128.1, and Thunderbird 128.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.

Memory Corruption

Select options could obscure the fullscreen notification dialog

CVE-2024-7518 6.5 - Medium - August 06, 2024

Select options could obscure the fullscreen notification dialog. This could be used by a malicious site to perform a spoofing attack. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.

Insufficient checks when processing graphics shared memory could have led to memory corruption

CVE-2024-7519 9.6 - Critical - August 06, 2024

Insufficient checks when processing graphics shared memory could have led to memory corruption. This could be leveraged by an attacker to perform a sandbox escape. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.

Memory Corruption

A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution

CVE-2024-7520 8.8 - High - August 06, 2024

A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.

Object Type Confusion

Incomplete WebAssembly exception handing could have led to a use-after-free

CVE-2024-7521 8.8 - High - August 06, 2024

Incomplete WebAssembly exception handing could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.

Improper Handling of Exceptional Conditions

Editor code failed to check an attribute value

CVE-2024-7522 8.8 - High - August 06, 2024

Editor code failed to check an attribute value. This could have led to an out-of-bounds read. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.

Out-of-bounds Read

It was possible for a web extension with minimal permissions to create a `StreamFilter`

CVE-2024-7525 8.1 - High - August 06, 2024

It was possible for a web extension with minimal permissions to create a `StreamFilter` which could be used to read and modify the response body of requests on any site. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.

Incorrect Default Permissions

ANGLE failed to initialize parameters which lead to reading from uninitialized memory

CVE-2024-7526 6.5 - Medium - August 06, 2024

ANGLE failed to initialize parameters which lead to reading from uninitialized memory. This could be leveraged to leak sensitive data from memory. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.

Use of Uninitialized Resource

Unexpected marking work at the start of sweeping could have led to a use-after-free

CVE-2024-7527 8.8 - High - August 06, 2024

Unexpected marking work at the start of sweeping could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.

Dangling pointer

Incorrect garbage collection interaction in IndexedDB could have led to a use-after-free

CVE-2024-7528 8.8 - High - August 06, 2024

Incorrect garbage collection interaction in IndexedDB could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.

Dangling pointer

The date picker could partially obscure security prompts

CVE-2024-7529 6.5 - Medium - August 06, 2024

The date picker could partially obscure security prompts. This could be used by a malicious site to trick a user into granting permissions. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.

It was possible to move the cursor using pointerlock from an iframe

CVE-2024-6608 4.3 - Medium - July 09, 2024

It was possible to move the cursor using pointerlock from an iframe. This allowed moving the cursor outside of the viewport and the Firefox window. This vulnerability affects Firefox < 128 and Thunderbird < 128.

When almost out-of-memory an elliptic curve key which was never allocated could have been freed again

CVE-2024-6609 8.8 - High - July 09, 2024

When almost out-of-memory an elliptic curve key which was never allocated could have been freed again. This vulnerability affects Firefox < 128 and Thunderbird < 128.

Form validation popups could capture escape key presses

CVE-2024-6610 4.3 - Medium - July 09, 2024

Form validation popups could capture escape key presses. Therefore, spamming form validation messages could be used to prevent users from exiting full-screen mode. This vulnerability affects Firefox < 128 and Thunderbird < 128.

CSP violations generated links in the console tab of the developer tools, pointing to the violating resource

CVE-2024-6612 - July 09, 2024

CSP violations generated links in the console tab of the developer tools, pointing to the violating resource. This caused a DNS prefetch which leaked that a CSP violation happened. This vulnerability affects Firefox < 128 and Thunderbird < 128.

A nested iframe, triggering a cross-site navigation, could send SameSite=Strict or Lax cookies

CVE-2024-6611 - July 09, 2024

A nested iframe, triggering a cross-site navigation, could send SameSite=Strict or Lax cookies. This vulnerability affects Firefox < 128 and Thunderbird < 128.

Clipboard code failed to check the index on an array access

CVE-2024-6606 - July 09, 2024

Clipboard code failed to check the index on an array access. This could have led to an out-of-bounds read. This vulnerability affects Firefox < 128 and Thunderbird < 128.

Memory safety bugs present in Firefox 127, Firefox ESR 115.12, and Thunderbird 115.12

CVE-2024-6604 - July 09, 2024

Memory safety bugs present in Firefox 127, Firefox ESR 115.12, and Thunderbird 115.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

In an out-of-memory scenario an allocation could fail but free

CVE-2024-6603 - July 09, 2024

In an out-of-memory scenario an allocation could fail but free would have been called on the pointer afterwards leading to memory corruption. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

A mismatch between allocator and deallocator could have led to memory corruption

CVE-2024-6602 - July 09, 2024

A mismatch between allocator and deallocator could have led to memory corruption. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

A race condition could lead to a cross-origin container obtaining permissions of the top-level origin

CVE-2024-6601 - July 09, 2024

A race condition could lead to a cross-origin container obtaining permissions of the top-level origin. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces

CVE-2024-6613 - July 09, 2024

The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces. This vulnerability affects Firefox < 128 and Thunderbird < 128.

The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces

CVE-2024-6614 - July 09, 2024

The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces. This vulnerability affects Firefox < 128 and Thunderbird < 128.