{"id":"CVE-2025-34181","aliases":["EUVD-2025-203378","GHSA-w2fq-8jpx-5f27"],"status":"published","title":"NetSupport Manager \u003c 14.12.0001 Authenticated Path Traversal Arbitrary File Write RCE","description":"NetSupport Manager \u003c 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.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01036,"percentile":0.64182,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2025-12-15T14:42:18Z","modified":"2026-10-23T22:10:00Z","products":[{"vendor":"manager-io","product":"manager"},{"vendor":"netsupport software","product":"manager"}],"references":[{"url":"https://kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsupport-manager/","tags":["vendor-advisory","patch"]},{"url":"https://www.vulncheck.com/advisories/netsupport-manager-authenticated-path-traversal-arbitrary-write-rce","tags":["third-party-advisory"]},{"url":"https://ret2.me/post/2025-12-04-exploiting-netsupport-gateway/","tags":["technical-description","exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-34181"},{"url":"https://kb.netsupportsoftware.com/knowledge-base/updating-and-securing-netsupport-manager"},{"url":"https://ret2.me/post/2025-12-04-exploiting-netsupport-gateway"},{"url":"https://github.com/advisories/GHSA-w2fq-8jpx-5f27"}],"sources":{"cve":[{"id":"CVE-2025-34181","title":"NetSupport Manager \u003c 14.12.0001 Authenticated Path Traversal Arbitrary File Write RCE","description":"NetSupport Manager \u003c 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.","status":"published","published":"2025-12-15T14:42:18.114Z","modified":"2026-05-14T02:07:54.726Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:32:54.534202Z"}],"euvd":[{"id":"EUVD-2025-203378","description":"NetSupport Manager \u003c 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.","status":"published","published":"2025-12-15T14:42:18Z","modified":"2026-05-14T02:07:54Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:04:32.516693Z"}],"ghsa":[{"id":"GHSA-w2fq-8jpx-5f27","title":"NetSupport Manager \u003c 14.12.0001 contains an arbitrary file write vulnerability in its...","description":"NetSupport Manager \u003c 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.","status":"published","published":"2025-12-15T15:30:31Z","modified":"2025-12-15T21:30:31Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:05:12.969095Z"}],"nvd":[{"id":"CVE-2025-34181","description":"NetSupport Manager \u003c 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.","status":"published","published":"2025-12-15T15:15:49.863Z","modified":"2026-10-23T22:10:00.16Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:11:50.400521Z"}]}}