{"cve":{"cve_id":"CVE-2025-40551","is_kev":true,"kev_date_added":"2026-02-03","kev_vendor_project":"SolarWinds","kev_product":"Web Help Desk","kev_vulnerability_name":"SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability","kev_short_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.","kev_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.","kev_due_date":"2026-02-06","kev_known_ransomware":false,"kev_notes":"https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40551 ; https://nvd.nist.gov/vuln/detail/CVE-2025-40551","kev_cwes":["CWE-502"],"epss_score":0.8413,"epss_percentile":0.99659,"epss_as_of":"2026-06-23","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.","published_at":"2026-01-28T07:33:09.603000Z","last_modified_at":null,"cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-502"],"nvd_references":["https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40551","https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-28T23:26:52.426973Z"},"effective_severity":"CRITICAL","badges":["kev","poc","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"solarwinds","vendor_name":"SolarWinds","product_slug":"web-help-desk","product_name":"Web Help Desk","version_start":"12.8.8 HF1 and below","version_start_inclusive":true,"version_end":"12.8.8 HF1 and below","version_end_inclusive":true,"cpe23_uri":"cve5:solarwinds:web-help-desk:12.8.8 HF1 and below:12.8.8 HF1 and below"}],"exploit_refs":[{"source":"nuclei","kind":"nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-40551.yaml","title":"SolarWinds Web Help Desk < 2026.1 - Unauthenticated JNDI Injection RCE","author":"Horizon3.ai","disclosed_at":null}],"news":[],"references":[{"url":"https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40551","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-01-28T07:33:09.603000Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2026-02-03T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"poc_available","at":"2026-06-24T00:29:48.638073Z","label":"Public PoC available","source":"nuclei"},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"}]}