CVE-2026-92377

Local Privilege Escalation via DLL Sideloading in TeamViewer Patch Management for Windows

State: Published
Severity: 7.8 High
Published: Oct 27, 2026
Updated: Oct 27, 2026
Reserved: Sep 16, 2026

Description

Improper access control in the Patch Management update mechanism of TeamViewer Full Client and Host for Windows prior to version 15.82 allows a local authenticated attacker with low privileges to supply a signed executable through a forged IPC response and cause it to load a malicious DLL from a user-writable temporary directory. Successful exploitation results in arbitrary code execution with NT AUTHORITY\SYSTEM privileges.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	TV

Weaknesses

CWE-732 Incorrect Permission Assignment for Critical Resource

Affected Products

Product	Versions
Full ClientTeamViewer	before 15.82Affected 15.64.0 (Legacy Windows 7 & 8) to before 15.64.10 (Legacy Windows 7 & 8)Affected 14.7.0 to before 14.7.48868Affected 13.2.0 to before 13.2.36231Affected
HostTeamViewer	before 15.82Affected 15.64.0 (Legacy Windows 7 & 8) to before 15.64.10 (Legacy Windows 7 & 8)Affected 14.7.0 to before 14.7.48868Affected 13.2.0 to before 13.2.36231Affected

References

https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1012/vendor-advisory

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