{"id":"CVE-2025-40553","aliases":["EUVD-2025-206482","GHSA-5gq3-mh83-6m28"],"status":"published","title":"SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability","description":"SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.67975,"percentile":0.99333,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2026-01-28T07:35:41Z","modified":"2026-06-17T09:21:44Z","products":[{"vendor":"solarwinds","product":"web help desk"},{"vendor":"solarwinds","product":"web_help_desk"}],"references":[{"url":"https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40553","tags":["Vendor Advisory"]},{"url":"https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm","tags":["release-notes","Release Notes"]},{"url":"https://github.com/watchtowrlabs/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-40553/blob/main/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-40553.py","tags":["exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40553"},{"url":"https://github.com/advisories/GHSA-5gq3-mh83-6m28"}],"sources":{"cve":[{"id":"CVE-2025-40553","title":"SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability","description":"SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.","status":"published","published":"2026-01-28T07:35:41.825Z","modified":"2026-02-27T04:55:46.647Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:32:34.434755Z"}],"euvd":[{"id":"EUVD-2025-206482","description":"SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.","status":"published","published":"2026-01-28T07:35:41Z","modified":"2026-02-27T04:55:46Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:48:14.049749Z"}],"ghsa":[{"id":"GHSA-5gq3-mh83-6m28","title":"SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization...","description":"SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.","status":"published","published":"2026-01-28T09:30:31Z","modified":"2026-02-26T21:31:28Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:06:23.326773Z"}],"nvd":[{"id":"CVE-2025-40553","description":"SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.","status":"published","published":"2026-01-28T08:16:02.583Z","modified":"2026-06-17T09:21:44.7Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:11:59.073638Z"}]}}