Microsoft Teams
23 CVEs affecting Microsoft Teams. Latest disclosed: 2026-06-09. Critical: 1, High: 14.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2026-33823 | Critical | 9.6 | 2026-05-07 | Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network. |
CVE-2023-4863 | High | 8.8 | 2023-09-12 | 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 v… |
CVE-2023-29330 | High | 8.8 | 2023-08-08 | Microsoft Teams Remote Code Execution Vulnerability |
CVE-2023-29328 | High | 8.8 | 2023-08-08 | Microsoft Teams Remote Code Execution Vulnerability |
CVE-2026-21535 | High | 8.2 | 2026-02-19 | Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network. |
CVE-2026-42835 | High | 8.1 | 2026-06-09 | Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Teams for Android allows an authorized attacker… |
CVE-2020-17091 | High | 7.8 | 2020-11-11 | Microsoft Teams Remote Code Execution Vulnerability |
CVE-2019-5922 | High | 7.8 | 2019-03-12 | Untrusted search path vulnerability in The installer of Microsoft Teams allows an attacker to gain privileges via a Trojan horse DLL in an unspecified director… |
CVE-2025-53783 | High | 7.5 | 2025-08-12 | Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network. |
CVE-2022-21965 | High | 7.5 | 2022-02-09 | Microsoft Teams Denial of Service Vulnerability |
CVE-2026-26133 | High | 7.1 | 2026-03-16 | AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network. |
CVE-2024-42004 | High | 7.1 | 2024-12-18 | 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 a… |
CVE-2024-41145 | High | 7.1 | 2024-12-18 | 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… |
CVE-2024-41138 | High | 7.1 | 2024-12-18 | 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 mac… |
CVE-2025-49737 | High | 7.0 | 2025-07-08 | Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Teams allows an authorized attacker to elevate privile… |
CVE-2024-38197 | Medium | 6.5 | 2024-08-13 | Microsoft Teams for iOS Spoofing Vulnerability |
CVE-2023-24881 | Medium | 6.5 | 2023-07-11 | Microsoft Teams Information Disclosure Vulnerability |
CVE-2021-24114 | Medium | 5.7 | 2021-02-25 | Microsoft Teams iOS Information Disclosure Vulnerability |
CVE-2020-10146 | Medium | 5.7 | 2020-12-09 | The Microsoft Teams online service contains a stored cross-site scripting vulnerability in the displayName parameter that can be exploited on Teams clients to… |
CVE-2026-32185 | Medium | 5.5 | 2026-05-12 | Files or directories accessible to external parties in Microsoft Teams allows an unauthorized attacker to perform spoofing locally. |