Path Traversal in Netsupport Software Manager
CVE-2025-34181
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
EPSS exploit prediction
EPSS: 0.010 (62.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
Affected products
- Netsupport Software Manager — versions 0
Weakness classification (CWE)
References
- kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsupport-manag… (vendor-advisory, patch)
- www.vulncheck.com/advisories/netsupport-manager-authenticated-path-traversal-ar… (third-party-advisory)
- ret2.me/post/2025-12-04-exploiting-netsupport-gateway/ (technical-description, exploit)