{"id":"CVE-2025-34181","title":"NetSupport Manager < 14.12.0001 contains an arbitrary file write vulnerability in its Connectivity Server/Gateway PUTFILE request handler","summary":"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 …","severity":"none","cwe":["CWE-22"],"published":"2025-12-15","updated":"2026-10-07","sourceUpdated":"2026-10-07T19:10:00.160","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-34181","references":[{"url":"https://kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsupport-manager/","label":"disclosure@vulncheck.com"},{"url":"https://ret2.me/post/2025-12-04-exploiting-netsupport-gateway/","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/netsupport-manager-authenticated-path-traversal-arbitrary-write-rce","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.01036,"epssPercentile":0.62736,"ingestedAt":"2026-10-07T19:44:15.688Z","slug":"CVE-2025-34181","body":"## Overview\n\nNetSupport 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}