{"id":"CVE-2025-40551","aliases":["EUVD-2025-206426","GHSA-7qrj-j83p-3vqg"],"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":0.84181,"percentile":0.997,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-502"],"published":"2026-01-28T07:33:09Z","modified":"2026-10-07T17:55:29Z","kev":{"date_added":"2026-02-03","due_date":"2026-02-06","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2026-02-03"},{"source":"kev","since":"2026-02-03"}],"exploits":[{"source":"metasploit","id":"exploit/multi/http/solarwinds_webhelpdesk_rce","title":"SolarWinds Web Help Desk unauthenticated RCE","type":"exploit","platform":"Linux,Unix,Windows","date":"2026-01-28","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/multi/http/solarwinds_webhelpdesk_rce"},{"source":"nuclei","id":"CVE-2025-40551","title":"SolarWinds Web Help Desk \u003c 2026.1 - Unauthenticated JNDI Injection RCE","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-40551.yaml"}],"products":[{"vendor":"solarwinds","product":"web help desk"},{"vendor":"solarwinds","product":"web_help_desk"}],"references":[{"url":"https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40551","tags":["vendor-advisory","patch","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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-40551","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40551"},{"url":"https://github.com/advisories/GHSA-7qrj-j83p-3vqg"}],"sources":{"cve":[{"id":"CVE-2025-40551","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":"2026-01-28T07:33:09.603Z","modified":"2026-10-07T17:55:29.348Z","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-2025-206426","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":"2026-01-28T07:33:09Z","modified":"2026-10-07T17:55:29Z","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"}],"exploited_since":"2026-02-03","updated_at":"2026-11-02T17:27:34.815018Z"}],"ghsa":[{"id":"GHSA-7qrj-j83p-3vqg","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":"2026-02-03T21:31:50Z","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":"2026-11-02T15:06:01.446393Z"}],"kev":[{"id":"CVE-2025-40551","title":"SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability","description":"SolarWinds Web Help Desk contains a deserialization of untrusted data 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.","cwes":["CWE-502"],"kev":{"date_added":"2026-02-03","due_date":"2026-02-06","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2025-40551","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":"2026-01-28T08:16:02.273Z","modified":"2026-06-17T09:21:44.487Z","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"}]}}