CVE-2025-34181CWE-22path-traversal

CVE-2025-34181

published December 15, 2025

CVSS
8.7
EPSS
1%
Percentile
63.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.7 · NONE
CVSS v4.0
Not supplied
EPSS
0.01036 · 63.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2025-12-15T20:15Z
References (3)
https://kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsupport-manager/ · [email protected]https://ret2.me/post/2025-12-04-exploiting-netsupport-gateway/ · [email protected]https://www.vulncheck.com/advisories/netsupport-manager-authenticated-path-traversal-arbitrary-write-rce · [email protected]
EPSS history
Timeline
  • 15 DEC 14:42Z
    NetSupport Manager < 14.12.0001 Authenticated Path Traversal Arbitrary File Write RCE
    cvelistv5