Vulnerability in Teamviewer Full Client
CVE-2026-92369
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.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-92369?
- CVE-2026-92369 is a high-severity vulnerability in Teamviewer Full Client, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.3/10. Published 2026-09-29.
- How severe is CVE-2026-92369?
- High severity. CVSS v3 base score is 7.3 out of 10.