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.
Metrics
Affected Vendors & Products
References
History
Wed, 30 Sep 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 30 Sep 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Teamviewer
Teamviewer full Client Teamviewer host |
|
| Vendors & Products |
Teamviewer
Teamviewer full Client Teamviewer host |
Tue, 29 Sep 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Time-of-check Time-of-use (TOCTOU) Race Condition in TeamViewer Windows Installer Rollback Mechanism Leads to Local Privilege Escalation | |
| Weaknesses | CWE-367 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: TV
Published: 2026-09-29T15:39:53.082Z
Updated: 2026-09-30T15:28:19.100Z
Reserved: 2026-09-16T07:16:01.956Z
Link: CVE-2026-92369
Updated: 2026-09-30T15:26:40.815Z
Status : Deferred
Published: 2026-09-29T16:17:14.890
Modified: 2026-09-30T16:19:24.920
Link: CVE-2026-92369
No data.