Microsoft Teams

Teams Admin Center Log Exposes Sensitive Data During Config Changes
CVE-2025-14432 - December 16, 2025

In limited scenarios, sensitive data might be written to the log file if an admin uses Microsoft Teams Admin Center (TAC) to make device configuration changes. The affected log file is visible only to users with admin credentials. This is limited to Microsoft TAC and does not affect configuration changes made using the provisioning server or the device WebUI.

Insertion of Sensitive Information into Log File

Aug 2025: Microsoft Teams Remote Code Execution Vulnerability
CVE-2025-53783 7.5 - High - August 12, 2025

Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.

Heap-based Buffer Overflow

Microsoft Teams Library Injection Vulnerability on macOS
CVE-2024-42004 7.1 - High - December 18, 2024

A library injection vulnerability exists in Microsoft Teams (work or school) 24046.2813.2770.1094 for macOS. A specially crafted library can leverage Teams'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 Teams WebView.app Helper Library Injection Vulnerability
CVE-2024-41145 7.1 - High - December 18, 2024

A library injection vulnerability exists in the WebView.app helper app of Microsoft Teams (work or school) 24046.2813.2770.1094 for macOS. A specially crafted library can leverage Teams'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 Teams macOS Helper App Library Injection Vulnerability
CVE-2024-41138 7.1 - High - December 18, 2024

A library injection vulnerability exists in the com.microsoft.teams2.modulehost.app helper app of Microsoft Teams (work or school) 24046.2813.2770.1094 for macOS. A specially crafted library can leverage Teams'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

MS Teams iOS Spoofing Vulnerability (CVE-2024-38197)
CVE-2024-38197 6.5 - Medium - August 13, 2024

Microsoft Teams for iOS Spoofing Vulnerability

User Interface (UI) Misrepresentation of Critical Information

Microsoft Teams Android Info Disclosure via API Hardcode
CVE-2024-21448 5 - Medium - March 12, 2024

Microsoft Teams for Android Information Disclosure Vulnerability

Microsoft Teams Android Info Disclosure (CVE-2024-21374)
CVE-2024-21374 5 - Medium - February 13, 2024

Microsoft Teams for Android Information Disclosure Vulnerability

Microsoft Teams Race: Event Subsystem Use-After-Free in AV Calls
CVE-2023-38538 5 - Medium - October 04, 2023

A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.

Race Condition

Heap Buffer Overflow in libwebp (Chrome <116.0.5845.187 / libwebp 1.3.2)
CVE-2023-4863 8.8 - High - September 12, 2023

Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

Memory Corruption

Microsoft Teams RCE Vulnerability (CVE-2023-29330)
CVE-2023-29330 8.8 - High - August 08, 2023

Microsoft Teams Remote Code Execution Vulnerability

Teams RCE in CVE-2023-29328
CVE-2023-29328 8.8 - High - August 08, 2023

Microsoft Teams Remote Code Execution Vulnerability

Teams Info Disclosure Vulnerability
CVE-2023-24881 6.5 - Medium - July 11, 2023

Microsoft Teams Information Disclosure Vulnerability

Open-Redirect via Feedback action in Microsoft Teams Admin
CVE-2022-38657 5.4 - Medium - February 12, 2023

An open redirect to malicious sites can occur when accessing the "Feedback" action on the manager page.

Open Redirect

Messaging Service Local DoS via Missing Permission Check (Teams)
CVE-2022-38687 5.5 - Medium - October 14, 2022

In messaging service, there is a missing permission check. This could lead to local denial of service in messaging service with no additional execution privileges needed.

AuthZ

Microsoft Teams Denial of Service Vulnerability
CVE-2022-21965 7.5 - High - February 09, 2022

Microsoft Teams Denial of Service Vulnerability

Microsoft Teams iOS Information Disclosure Vulnerability
CVE-2021-24114 5.7 - Medium - February 25, 2021

Microsoft Teams iOS Information Disclosure Vulnerability

The Microsoft Teams online service contains a stored cross-site scripting vulnerability in the displayName parameter
CVE-2020-10146 5.4 - Medium - December 09, 2020

The Microsoft Teams online service contains a stored cross-site scripting vulnerability in the displayName parameter that can be exploited on Teams clients to obtain sensitive information such as authentication tokens and to possibly execute arbitrary commands. This vulnerability was fixed for all Teams users in the online service on or around October 2020.

XSS

Microsoft Teams Remote Code Execution Vulnerability
CVE-2020-17091 7.8 - High - November 11, 2020

Microsoft Teams Remote Code Execution Vulnerability

Untrusted search path vulnerability in The installer of Microsoft Teams
CVE-2019-5922 7.8 - High - March 12, 2019

Untrusted search path vulnerability in The installer of Microsoft Teams allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

Untrusted Path