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CVE-2026-16444 is an improper neutralization of path-traversal sequences in TeamViewer Desktop Clients before version 15.81.5. Insufficient validation of filenames supplied by an authenticated remote-session participant through file transfer or the virtual file clipboard permits received files to be written outside the intended download directory. The issue affects TeamViewer Full Client, Host, and QuickSupport components on Windows, macOS, and Linux.
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No public exploit code observed for this vulnerability.
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8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity path-traversal flaw in TeamViewer desktop clients that enables authenticated attackers to write files outside intended directories through file-transfer functionality or the virtual file clipboard, potentially leading to code execution as the affected user.
An authenticated path-traversal/arbitrary file-write vulnerability in TeamViewer Desktop Clients. A malicious remote-session participant can supply crafted filenames through file transfer or the virtual file clipboard to write files to unintended local paths, potentially enabling user-privilege code execution if a payload is placed in a subsequently executed or loaded location.
A path-traversal/arbitrary-file-write vulnerability in TeamViewer Desktop Clients. Unsanitized filenames supplied by a remote peer during file transfer or virtual clipboard operations can cause files to be written to unintended locations.
An authenticated path-traversal arbitrary-file-write vulnerability in TeamViewer Desktop Clients before version 15.81.5. A remote-session participant can write files to unintended local filesystem locations through file transfer or the virtual file clipboard, potentially resulting in code execution with the affected user's privileges.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.