CVE-2026-92369 Race condition in Full Client
A local attacker can exploit a race condition in the TeamViewer Windows installer rollback to escalate privileges to SYSTEM.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-92369?
CVE-2026-92369 is a high-severity vulnerability in TeamViewer Full Client, published on 29 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
TeamViewer Full Client and Host prior to version 15.82 on Windows contain a TOCTOU race condition in the installer rollback mechanism. A local low-privileged attacker can replace rollback backup files stored in a user-writable temporary directory before they are restored by an elevated installer, resulting in privilege escalation to NT AUHORITY/SYSTEM. Exploitation requires successful timing of the race condition and a rollback during installation or update.
Weakness: CWE-367
Which versions are affected by CVE-2026-92369?
How do I fix CVE-2026-92369?
No fix has been published for CVE-2026-92369 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-92369 being exploited?
There is no known exploitation of CVE-2026-92369 in the wild and no public exploit code.
Sources
Also known as GHSA-gc52-c427-xf67.