Quick answers
- Is CVE-2026-92377 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-92377 being exploited in the wild.
- How severe is CVE-2026-92377?
- High severity, with a CVSS score of 7.8, published 27 October 2026.
- Which products and versions are affected?
- Teamviewer Full Client for Windows prior to 15.82.
- Is there a fix for CVE-2026-92377?
- Yes: fixed in 15.82. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-92377 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-92377?
- Check whether you run Teamviewer Full Client for Windows at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 15.82
Technical details
An improper access control vulnerability in TeamViewer's Patch Management update mechanism allows a local authenticated attacker to forge an IPC response and supply a signed executable that loads a malicious DLL from a user-writable temporary directory. The vulnerability requires local authentication and low privileges but no user interaction, resulting in arbitrary code execution as NT AUTHORITY\SYSTEM through DLL sideloading.
Affected products
- TeamViewer Full Client for Windows prior to 15.82
Timeline
- 2026-10-27: disclosed