{"schema_version":"1","data":[{"id":2966,"advisory_id":"b837d3d5-0b76-4241-ab7b-54ceb1f4a196","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-40449","source_published_at":"2021-11-17T00:00:00+00:00","published_at":"2026-10-24T21:26:55.752621+00:00","extraction_method":"structured","technologies":["core-kev","windows"],"cve_ids":["CVE-2021-40449"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Microsoft Windows Win32k Privilege Escalation Vulnerability","summary":"Unspecified vulnerability allows for an authenticated user to escalate privileges. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2021-40449","products":[{"name":{"value":"Windows","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2021-40449","aliases":["CVE-2021-40449"],"affected":[],"modified":"2021-11-17T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-416"],"cveID":"CVE-2021-40449","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-40449","dueDate":"2021-12-01","product":"Windows","dateAdded":"2021-11-17","vendorProject":"Microsoft","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Unspecified vulnerability allows for an authenticated user to escalate privileges.","vulnerabilityName":"Microsoft Windows Win32k Privilege Escalation Vulnerability","knownRansomwareCampaignUse":"Known"}},"related_cves":[{"value":"CVE-2021-40449","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}}],"next_after":2966,"next_before":2966}