What is CVE-2026-92377?

CVE-2026-92377 is a high-severity vulnerability in Teamviewer Full Client, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-10-27.

How severe is CVE-2026-92377?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Teamviewer Full Client

CVE-2026-92377

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.

Published 2026-10-27.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

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

Frequently asked questions

What is CVE-2026-92377?: CVE-2026-92377 is a high-severity vulnerability in Teamviewer Full Client, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-10-27.
How severe is CVE-2026-92377?: High severity. CVSS v3 base score is 7.8 out of 10.