Which versions of TeamViewer are affected?

Versions prior to 15.82 on Windows, Linux, and macOS are affected by these vulnerabilities.

Is there evidence of exploitation in the wild?

No, TeamViewer has stated there is no known active exploitation or public disclosure of these vulnerabilities.

What should users do immediately?

Users should update to TeamViewer version 15.82 as soon as possible to mitigate the vulnerabilities.

Bleepingcomputer

TeamViewer Issues Urgent Patch for Five High-Severity Vulnerabilities

First seen 30 Sep 2026, 14:29 UTC • •66.0

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ThreatCluster •September 30, 2026 at 17:31 UTC

•Five high-severity vulnerabilities patched in TeamViewer software.
•CVE-2026-92370 allows remote code execution via access control bypass.
•TeamViewer urges immediate updates to version 15.82 to mitigate risks.

TeamViewer has released a security bulletin on September 29, 2026, addressing five high-severity vulnerabilities in its remote access software, affecting versions prior to 15.82 on Windows, Linux, and macOS. The most flaw, CVE-2026-92370, allows remote attackers to bypass access controls and execute arbitrary code, carrying a CVSS score of 8.8. Other vulnerabilities include a path traversal flaw (CVE-2026-19743), a heap-based buffer overflow (CVE-2026-92368), a TOCTOU race condition (CVE-2026-92369), and improper path validation (CVE-2026-92371), all rated as high severity. TeamViewer has urged all users to update immediately, although it reports no active exploitation or public disclosure of these vulnerabilities. The software is widely used by corporate help desks and managed service providers, making these vulnerabilities particularly concerning.