{"schema_version":"1","data":[{"id":3748,"advisory_id":"ad522125-aef4-46f2-a706-8a01acd0b06a","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-21985","source_published_at":"2021-11-03T00:00:00+00:00","published_at":"2026-10-24T21:40:18.883956+00:00","extraction_method":"structured","technologies":["core-kev","vcenter-server"],"cve_ids":["CVE-2021-21985"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"VMware vCenter Server Improper Input Validation Vulnerability","summary":"VMware vSphere Client contains an improper input validation vulnerability in the Virtual SAN Health Check plug-in, which is enabled by default in vCenter Server, which allows for remote code execution. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2021-21985","products":[{"name":{"value":"vCenter Server","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2021-21985","aliases":["CVE-2021-21985"],"affected":[],"modified":"2021-11-03T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-20","CWE-470","CWE-918"],"cveID":"CVE-2021-21985","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-21985","dueDate":"2021-11-17","product":"vCenter Server","dateAdded":"2021-11-03","vendorProject":"VMware","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"VMware vSphere Client contains an improper input validation vulnerability in the Virtual SAN Health Check plug-in, which is enabled by default in vCenter Server, which allows for remote code execution.","vulnerabilityName":"VMware vCenter Server Improper Input Validation Vulnerability","knownRansomwareCampaignUse":"Known"}},"related_cves":[{"value":"CVE-2021-21985","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}}],"next_after":3748,"next_before":3748}