{"cvss":9.8,"datePublished":"2026-03-09","dateUpdated":"2026-03-09","description":"SolarWinds Web Help Desk contain a deserialization of untrusted data vulnerability in AjaxProxy that could allow an attacker to run commands on the host machine.","dueDate":"2026-03-12","id":"CVE-2025-26399","kev_catalogs":["cisa"],"knownRansomwareCampaignUse":"Known","notes":"https://www.solarwinds.com/trust-center/security-advisories/cve-2025-26399 ; https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_12-8-7-hotfix-1_release_notes.htm ; https://nvd.nist.gov/vuln/detail/CVE-2025-26399","product":"Web Help Desk","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","severity":"CRITICAL","source":"cisa_known_exploited","title":"SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability","vendor":"SolarWinds"}