CVE-2026-16444 HIGH

CVE-2026-16444: Improper Validation of File Paths in TeamViewer Desktop Clients

Vendor Teamviewer
Product Full Client, Host, QuickSupport & Portable
Weakness CWE-73
Published August 26, 2026
Last update August 27, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Improper neutralization of path traversal sequences in TeamViewer Desktop Clients prior Version 15.81.5 allows an authenticated remote session participant to write files to unintended locations on the local file system via file transfer or virtual file clipboard mechanisms. An attacker can leverage this behavior to achieve arbitrary file write and potentially execute code with the privileges of the affected user.

Key dates

02Disclosure timeline

August 26, 2026 CVE published
August 27, 2026 Record updated

Related vulnerabilities

04Related CVE