CVE-2025-34181
NetSupport Manager < 14.12.0001 Authenticated Path Traversal Arbitrary File Write RCE
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
NetSupport Manager < 14.12.0001 contains an arbitrary file write vulnerability in its Connectivity Server/Gateway PUTFILE request handler. An attacker with a valid Gateway Key can supply a crafted filename containing directory traversal sequences to write files to arbitrary locations on the server. This can be leveraged to place attacker-controlled DLLs or executables in privileged paths and achieve remote code execution in the context of the NetSupport Manager connectivity service.
| CWE | CWE-22 |
| Vendor | netsupport software |
| Product | manager |
| Published | Dec 15, 2025 |
| Last Updated | May 14, 2026 |
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Affected Versions
NetSupport Software / Manager
0 < 14.12.0001
References
kb.netsupportsoftware.com: https://kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsupport-manager/ vulncheck.com: https://www.vulncheck.com/advisories/netsupport-manager-authenticated-path-traversal-arbitrary-write-rce ret2.me: https://ret2.me/post/2025-12-04-exploiting-netsupport-gateway/
Credits
Chris Leech