Microsoft Outlook

Jul 2025: Microsoft Office Remote Code Execution Vulnerability
CVE-2025-49699 7 - High - July 08, 2025

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Dangling pointer

Jun 2025: Microsoft Outlook Remote Code Execution Vulnerability
CVE-2025-47171 6.7 - Medium - June 10, 2025

Improper input validation in Microsoft Office Outlook allows an authorized attacker to execute code locally.

Improper Input Validation

Jun 2025: Microsoft Outlook Remote Code Execution Vulnerability
CVE-2025-47176 7.8 - High - June 10, 2025

'.../...//' in Microsoft Office Outlook allows an authorized attacker to execute code locally.

Path Traversal: '.../...//'

May 2025: Microsoft Outlook Remote Code Execution Vulnerability
CVE-2025-32705 7.8 - High - May 13, 2025

Out-of-bounds read in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.

Out-of-bounds Read

Apr 2025: Outlook for Android Information Disclosure Vulnerability
CVE-2025-29805 7.5 - High - April 08, 2025

Exposure of sensitive information to an unauthorized actor in Outlook for Android allows an unauthorized attacker to disclose information over a network.

Information Disclosure

Feb 2025: Microsoft Outlook Spoofing Vulnerability
CVE-2025-21259 5.3 - Medium - February 11, 2025

Microsoft Outlook Spoofing Vulnerability

User Interface (UI) Misrepresentation of Critical Information

Jan 2025: Microsoft Outlook Remote Code Execution Vulnerability
CVE-2025-21361 7.8 - High - January 14, 2025

Microsoft Outlook Remote Code Execution Vulnerability

Improper Restriction of Names for Files and Other Resources

Jan 2025: Microsoft Outlook Remote Code Execution Vulnerability
CVE-2025-21357 6.7 - Medium - January 14, 2025

Microsoft Outlook Remote Code Execution Vulnerability

Use of Uninitialized Resource

Microsoft Outlook Library Injection Vulnerability on macOS
CVE-2024-42220 7.1 - High - December 18, 2024

A library injection vulnerability exists in Microsoft Outlook 16.83.3 for macOS. A specially crafted library can leverage Outlook's access privileges, leading to a permission bypass. A malicious application could inject a library and start the program to trigger this vulnerability and then make use of the vulnerable application's permissions.

Improper Verification of Cryptographic Signature

Microsoft Outlook Android EOP Vulnerability CVE-2024-43604
CVE-2024-43604 8 - High - October 08, 2024

Outlook for Android Elevation of Privilege Vulnerability

Insufficient Granularity of Access Control

Microsoft Outlook iOS Info Disclosure Vulnerability
CVE-2024-43482 6.5 - Medium - September 10, 2024

Microsoft Outlook for iOS Information Disclosure Vulnerability

AuthZ

Microsoft Outlook RCE Vulnerability
CVE-2024-38173 6.7 - Medium - August 13, 2024

Microsoft Outlook Remote Code Execution Vulnerability

Jul 2024: Microsoft Outlook Spoofing Vulnerability
CVE-2024-38020 6.5 - Medium - July 09, 2024

Microsoft Outlook Spoofing Vulnerability

Information Disclosure

Jul 2024: Microsoft Outlook Remote Code Execution Vulnerability
CVE-2024-38021 8.8 - High - July 09, 2024

Microsoft Outlook Remote Code Execution Vulnerability

Improper Input Validation

Jun 2024: Microsoft Outlook Remote Code Execution Vulnerability
CVE-2024-30103 8.8 - High - June 11, 2024

Microsoft Outlook Remote Code Execution Vulnerability

Denylist / Deny List

Outlook CIDBased Email Script Injection via Show More
CVE-2024-23187 6.1 - Medium - May 06, 2024

Content-ID based embedding of resources in E-Mails could be abused to trigger client-side script code when using the "show more" option. Attackers could perform malicious API requests or extract information from the users account. Exploiting the vulnerability requires user interaction. Please deploy the provided updates and patch releases. CID replacement has been hardened to omit invalid identifiers. No publicly available exploits are known.

XSS

Outlook for Windows Spoofing Vulnerability (CVE-2024-20670)
CVE-2024-20670 8.1 - High - April 09, 2024

Outlook for Windows Spoofing Vulnerability

Outlook for Android Info Disclosure CVE-2024-26204
CVE-2024-26204 7.5 - High - March 12, 2024

Outlook for Android Information Disclosure Vulnerability

Outlook EoP via Improper Access Control in Outlook Client
CVE-2024-21402 7.1 - High - February 13, 2024

Microsoft Outlook Elevation of Privilege Vulnerability

Outlook RCE Vulnerability CVE-2024-21378
CVE-2024-21378 8.8 - High - February 13, 2024

Microsoft Outlook Remote Code Execution Vulnerability

Microsoft Outlook XSS via CID reference in EMail (CVE202341704)
CVE-2023-41704 7.1 - High - February 12, 2024

Processing of CID references at E-Mail can be abused to inject malicious script code that passes the sanitization engine. Malicious script code could be injected to a users sessions when interacting with E-Mails. Please deploy the provided updates and patch releases. CID handing has been improved and resulting content is checked for malicious content. No publicly available exploits are known.

XSS

Outlook Info Disclosure via Malformed URL (CVE-2023-35636)
CVE-2023-35636 6.5 - Medium - December 12, 2023

Microsoft Outlook Information Disclosure Vulnerability

CVE-2023-35619: Outlook for Mac Spoofing Vulnerability
CVE-2023-35619 5.3 - Medium - December 12, 2023

Microsoft Outlook for Mac Spoofing Vulnerability

Microsoft Outlook AutoDiscover timeout leaks leading to network exhaustion
CVE-2023-29046 4.3 - Medium - November 02, 2023

Connections to external data sources, like e-mail autoconfiguration, were not terminated in case they hit a timeout, instead those connections were logged. Some connections use user-controlled endpoints, which could be malicious and attempt to keep the connection open for an extended period of time. As a result users were able to trigger large amount of egress network connections, possibly exhausting network pool resources and lock up legitimate requests. A new mechanism has been introduced to cancel external connections that might access user-controlled endpoints. No publicly available exploits are known.

Resource Exhaustion

Microsoft Outlook Local Info Disclosure via Missing Permission Check
CVE-2023-40644 5.5 - Medium - October 08, 2023

In Messaging, there is a possible missing permission check. This could lead to local information disclosure with no additional execution privileges needed

AuthZ

Sep 2023: Microsoft Outlook Information Disclosure Vulnerability
CVE-2023-36763 7.5 - High - September 12, 2023

Microsoft Outlook Information Disclosure Vulnerability

Information Disclosure

Microsoft Outlook LPE from Missing Permission Check on Contact Import
CVE-2023-35665 7.8 - High - September 11, 2023

In multiple files, there is a possible way to import a contact from another user due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

AuthZ

Microsoft Outlook Remote RCE Vulnerability
CVE-2023-36895 7.8 - High - August 08, 2023

Microsoft Outlook Remote Code Execution Vulnerability

Microsoft Outlook Spoofing Flaw Allowing Sender ID Manipulation
CVE-2023-36893 6.5 - Medium - August 08, 2023

Microsoft Outlook Spoofing Vulnerability

Jul 2023: Microsoft Outlook Security Feature Bypass Vulnerability
CVE-2023-35311 7.5 - High - July 11, 2023

Microsoft Outlook Security Feature Bypass Vulnerability

TOCTTOU

MS Outlook Remote Code Execution Vulnerability
CVE-2023-33153 8.8 - High - July 11, 2023

Microsoft Outlook Remote Code Execution Vulnerability

Outlook Spoofing Exploit CVE-2023-33151
CVE-2023-33151 6.5 - Medium - July 11, 2023

Microsoft Outlook Spoofing Vulnerability

Microsoft Outlook RCE Vulnerability (CVE-2023-33131)
CVE-2023-33131 8.8 - High - June 14, 2023

Microsoft Outlook Remote Code Execution Vulnerability

MS Outlook DoS via Email Parsing Vulnerability
CVE-2022-35742 7.5 - High - June 01, 2023

Microsoft Outlook Denial of Service Vulnerability

Mar 2023: Microsoft Outlook Elevation of Privilege Vulnerability
CVE-2023-23397 9.8 - Critical - March 14, 2023

Microsoft Outlook Elevation of Privilege Vulnerability

Improper Input Validation

Authenticated DoS in Microsoft Outlook
CVE-2022-27507 6.5 - Medium - January 26, 2023

Authenticated denial of service

Resource Exhaustion

Outlook for Android EoP Vulnerability (CVE-2022-24480)
CVE-2022-24480 6.3 - Medium - December 13, 2022

Outlook for Android Elevation of Privilege Vulnerability

MS Outlook DoS via crafted To header in email
CVE-2022-39052 6.5 - Medium - October 17, 2022

An external attacker is able to send a specially crafted email (with many recipients) and trigger a potential DoS of the system

Infinite Loop

Microsoft Office Graphics Remote Code Execution Vulnerability
CVE-2021-31941 7.8 - High - June 08, 2021

Microsoft Office Graphics Remote Code Execution Vulnerability

Microsoft Outlook Remote Code Execution Vulnerability
CVE-2021-31949 7.3 - High - June 08, 2021

Microsoft Outlook Remote Code Execution Vulnerability

Microsoft Outlook Memory Corruption Vulnerability
CVE-2021-28452 7.1 - High - April 13, 2021

Microsoft Outlook Memory Corruption Vulnerability

Memory Corruption

Dec 2020: Microsoft Outlook Information Disclosure Vulnerability
CVE-2020-17119 6.5 - Medium - December 10, 2020

Microsoft Outlook Information Disclosure Vulnerability

Oct 2020: Microsoft Outlook Remote Code Execution Vulnerability
CVE-2020-16947 7.5 - High - October 16, 2020

<p>A remote code execution vulnerability exists in Microsoft Outlook software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the targeted user. If the targeted user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.</p> <p>Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Outlook software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.</p> <p>Note that where severity is indicated as Critical in the Affected Products table, the Preview Pane is an attack vector.</p> <p>The security update addresses the vulnerability by correcting how Outlook handles objects in memory.</p>

Oct 2020: Microsoft Outlook Denial of Service Vulnerability
CVE-2020-16949 4.7 - Medium - October 16, 2020

<p>A denial of service vulnerability exists in Microsoft Outlook software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could cause a remote denial of service against a system.</p> <p>Exploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Outlook server.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Outlook handles objects in memory.</p>

A remote code execution vulnerability exists in Microsoft Outlook when the software fails to properly handle objects in memory
CVE-2020-1483 5 - Medium - August 17, 2020

A remote code execution vulnerability exists in Microsoft Outlook when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Outlook software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file. Note that where severity is indicated as Critical in the Affected Products table, the Preview Pane is an attack vector. The security update addresses the vulnerability by correcting how Outlook handles objects in memory.

Memory Corruption

An information disclosure vulnerability exists when attaching files to Outlook messages
CVE-2020-1493 5.5 - Medium - August 17, 2020

An information disclosure vulnerability exists when attaching files to Outlook messages. This vulnerability could potentially allow users to share attached files such that they are accessible by anonymous users where they should be restricted to specific users. To exploit this vulnerability, an attacker would have to attach a file as a link to an email. The email could then be shared with individuals that should not have access to the files, ignoring the default organizational setting. The security update addresses the vulnerability by correcting how Outlook handles file attachment links.

A remote code execution vulnerability exists in Microsoft Outlook software when it fails to properly handle objects in memory
CVE-2020-1349 7.8 - High - July 14, 2020

A remote code execution vulnerability exists in Microsoft Outlook software when it fails to properly handle objects in memory, aka 'Microsoft Outlook Remote Code Execution Vulnerability'.

A remote code execution vulnerability exists when Microsoft Office improperly loads arbitrary type libraries
CVE-2020-0760 8.8 - High - April 15, 2020

A remote code execution vulnerability exists when Microsoft Office improperly loads arbitrary type libraries, aka 'Microsoft Office Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0991.

Improper Input Validation

A security feature bypass vulnerability exists in Microsoft Outlook software when it improperly handles the parsing of URI formats
CVE-2020-0696 6.5 - Medium - February 11, 2020

A security feature bypass vulnerability exists in Microsoft Outlook software when it improperly handles the parsing of URI formats, aka 'Microsoft Outlook Security Feature Bypass Vulnerability'.

Jan 2020:
CVE-2019-1460 - January 24, 2020

A spoofing vulnerability exists in the way Microsoft Outlook for Android software parses specifically crafted email messages, aka 'Outlook for Android Spoofing Vulnerability'.