CVE-2026-19743 TeamViewer - Path Traversal & Privilege Escalation

TeamViewer Full Client and Host < 15.82 contain a path traversal caused by improper path validation in the local IPC service, letting local authenticated users with low privileges perform arbitrary file writes with elevated privileges, exploit requires local authentication.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.13% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Write, Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
29 September 2026
Updated
15 October 2026
Weakness
CWE-22

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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