Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsuppor
- https://ret2.me/post/2025-12-04-exploiting-netsupport-gateway/
- https://www.vulncheck.com/advisories/netsupport-manager-authenticated-path-trave
FAQ
What is CVE-2025-34181?
CVE-2025-34181 is a documented vulnerability. 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 fil...
How severe is CVE-2025-34181?
CVSS scoring is not yet available for CVE-2025-34181. Check NVD for updates.
Is there a patch for CVE-2025-34181?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.