Improper Access Control in TeamViewer Full Client and Host for Windows
CVE-2026-92377

7.8HIGH

Key Information:

Vendor

Teamviewer

Vendor
CVE Published:
27 October 2026

What is CVE-2026-92377?

A vulnerability exists within the Patch Management update mechanism of TeamViewer Full Client and Host for Windows that allows a local authenticated attacker with limited privileges to exploit the system. By sending a crafted IPC response, the attacker can supply a signed executable, resulting in the compromised loading of a malicious DLL from a user-writable temporary directory. This exploitation can lead to the execution of arbitrary code at elevated privileges, potentially allowing full control over the affected system.

Affected Version(s)

Full Client Windows 0 < 15.82

Full Client Windows 15.64.0 (Legacy Windows 7 & 8) < 15.64.10 (Legacy Windows 7 & 8)

Full Client Windows 14.7.0 < 14.7.48868

References

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

0x_alibabas (Giuliano Sanfins)
.