{"schema_version":"1","data":[{"id":2974,"advisory_id":"44f70a87-c28b-49fd-bb3a-75ddf7fcad29","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-28550","source_published_at":"2021-11-03T00:00:00+00:00","published_at":"2026-10-24T21:27:00.38172+00:00","extraction_method":"structured","technologies":["acrobat-and-reader","core-kev"],"cve_ids":["CVE-2021-28550"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Adobe Acrobat and Reader Use-After-Free Vulnerability","summary":"Adobe Acrobat and Reader contains a use-after-free vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2021-28550","products":[{"name":{"value":"Acrobat and Reader","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2021-28550","aliases":["CVE-2021-28550"],"affected":[],"modified":"2021-11-03T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-416"],"cveID":"CVE-2021-28550","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-28550","dueDate":"2021-11-17","product":"Acrobat and Reader","dateAdded":"2021-11-03","vendorProject":"Adobe","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Adobe Acrobat and Reader contains a use-after-free vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user.","vulnerabilityName":"Adobe Acrobat and Reader Use-After-Free Vulnerability","knownRansomwareCampaignUse":"Unknown"}},"related_cves":[{"value":"CVE-2021-28550","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null},"priority":{"reasons":["known_exploited"],"severity":"unknown","linked_cves":[],"fix_available":false,"known_exploited":true,"publisher_severity":"unknown"},"context_update":false}],"next_after":2974,"next_before":2974}