CVE-2026-16444

Summary

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.

Affected Software

VendorProductVersion RangeStatus
TeamViewerFull Client, Host, QuickSupport & Portable15.0 < 15.81.5affected
TeamViewerFull Client, Host, QuickSupport & Portable (for Windows 7 & 8)15.64.0 < 15.64.7affected
TeamViewerFull Client, Host, QuickSupport (v14 for Windows)14.0 < 14.7.48833affected
TeamViewerFull Client, Host, QuickSupport (v14 for Linux)14.0 < 14.7.48838affected
TeamViewerFull Client, Host, QuickSupport (v14 for macOS)14.0 < 14.7.48838affected
TeamViewerFull Client, Host, QuickSupport & Portable (v13 for Windows)13.0 < 13.2.36229affected
TeamViewerFull Client, Host, QuickSupport (v13 for Linux)13.0 < 13.2.153978affected
TeamViewerFull Client, Host, QuickSupport (v13 for macOS)13.0 < 13.2.153981affected

Weaknesses

  • CWE-73: CWE-73 External control of file name or path

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References