CVE-2026-92369 TeamViewer - Privilege Escalation

TeamViewer Full Client and Host prior to 15.82 on Windows contain a TOCTOU race condition in the installer rollback mechanism, letting local low-privileged attackers escalate privileges to NT AUTHORITY/SYSTEM by replacing rollback backup files during installation rollback.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.09% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published
29 September 2026
Updated
15 October 2026
Weakness
CWE-367

Vendor fix

Update to version 15.82 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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