{"schema_version":"1","data":[{"id":3731,"advisory_id":"e066f753-789c-43a1-ac38-0d85f512e4fb","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-24557","source_published_at":"2021-11-03T00:00:00+00:00","published_at":"2026-10-24T21:40:06.748552+00:00","extraction_method":"structured","technologies":["apex-one-officescan-and-worry-free-business-security","core-kev"],"cve_ids":["CVE-2020-24557"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Trend Micro Multiple Products Improper Access Control Vulnerability","summary":"Trend Micro Apex One, OfficeScan, and Worry-Free Business Security on Microsoft Windows contain an improper access control vulnerability that may allow an attacker to manipulate a particular product folder to disable the security temporarily, abuse a specific Windows function, and attain privilege escalation. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2020-24557","products":[{"name":{"value":"Apex One, OfficeScan, and Worry-Free Business Security","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2020-24557","aliases":["CVE-2020-24557"],"affected":[],"modified":"2021-11-03T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":[],"cveID":"CVE-2020-24557","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-24557","dueDate":"2022-05-03","product":"Apex One, OfficeScan, and Worry-Free Business Security","dateAdded":"2021-11-03","vendorProject":"Trend Micro","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Trend Micro Apex One, OfficeScan, and Worry-Free Business Security on Microsoft Windows contain an improper access control vulnerability that may allow an attacker to manipulate a particular product folder to disable the security temporarily, abuse a specific Windows function, and attain privilege escalation.","vulnerabilityName":"Trend Micro Multiple Products Improper Access Control Vulnerability","knownRansomwareCampaignUse":"Unknown"}},"related_cves":[{"value":"CVE-2020-24557","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}}],"next_after":3731,"next_before":3731}