CVE-2026-16444

HIGHCVSS 7.5/10EPSS 0.26%

Last modified

CVE-2026-16444 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.26%

17.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
TeamViewerFull Client, Host, QuickSupport & Portable>= 15.0, < 15.81.5
TeamViewerFull Client, Host, QuickSupport & Portable (for Windows 7 & 8)>= 15.64.0, < 15.64.7
TeamViewerFull Client, Host, QuickSupport (v14 for Windows)>= 14.0, < 14.7.48833
TeamViewerFull Client, Host, QuickSupport (v14 for Linux)>= 14.0, < 14.7.48838
TeamViewerFull Client, Host, QuickSupport (v14 for macOS)>= 14.0, < 14.7.48838
TeamViewerFull Client, Host, QuickSupport & Portable (v13 for Windows)>= 13.0, < 13.2.36229
TeamViewerFull Client, Host, QuickSupport (v13 for Linux)>= 13.0, < 13.2.153978
TeamViewerFull Client, Host, QuickSupport (v13 for macOS)>= 13.0, < 13.2.153981

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-16444?
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.
How severe is CVE-2026-16444?
CVE-2026-16444 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2026-16444?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST