{"schema":"threatline.record/2","record":{"id":"CVE-2025-40551","aliases":[],"summary":"SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability","details":"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.","categories":["Applications & CMS"],"product":"Web Help Desk","vendor":"SolarWinds","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-40551","source_modified_at":"2026-10-07T17:55:29.348Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Web Help Desk","vendor":"SolarWinds","versions":[{"status":"affected","version":"12.8.8 HF1 and below"}],"defaultStatus":"affected"}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":true,"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.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.84181,"percentile":0.99698,"score_date":"2026-10-23"},"published_at":"2026-01-28T07:33:09.603Z","modified_at":"2026-10-07T17:55:29.348Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2025-40551","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-07T17:55:29.348Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/solarwinds_webhelpdesk_rce.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-01-28"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-40551.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2025-40551","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","Nuclei","EPSS"],"references":[{"url":"https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40551","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40551","source":"CISA KEV"},{"source":"CVE List","url":"https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40551","tags":["vendor-advisory","patch"]},{"source":"CVE List","url":"https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm","tags":["release-notes"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-40551","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2026-02-04T04:55:44.585122Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"SolarWinds Web Help Desk unauthenticated RCE","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/solarwinds_webhelpdesk_rce.rb","date":"2026-01-28","added":"2026-03-11","check":true},{"source":"Nuclei","kind":"Scanner template","name":"SolarWinds Web Help Desk < 2026.1 - Unauthenticated JNDI Injection RCE","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-40551.yaml"}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-07T17:55:29.348Z","content_hash":"f5bb035be18bc9249b727ec2650b8c23882734d86ca0e32c531bf6dd796a367f"}}