{"schema_version":"1","data":[{"id":3598,"advisory_id":"55b03bd7-4a41-419f-a564-518657623f10","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-1647","source_published_at":"2021-11-03T00:00:00+00:00","published_at":"2026-10-24T21:37:58.292928+00:00","extraction_method":"structured","technologies":["core-kev","defender"],"cve_ids":["CVE-2021-1647"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Microsoft Defender Remote Code Execution Vulnerability","summary":"Microsoft Defender contains an unspecified vulnerability that allows for remote code execution. 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CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2022-44698","products":[{"name":{"value":"Defender","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2022-44698","aliases":["CVE-2022-44698"],"affected":[],"modified":"2022-12-13T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-755"],"cveID":"CVE-2022-44698","notes":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-44698;  https://nvd.nist.gov/vuln/detail/CVE-2022-44698","dueDate":"2023-01-03","product":"Defender","dateAdded":"2022-12-13","vendorProject":"Microsoft","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Microsoft Defender SmartScreen contains a security feature bypass vulnerability that could allow an attacker to evade Mark of the Web (MOTW) defenses via a specially crafted malicious file.","vulnerabilityName":"Microsoft Defender SmartScreen Security Feature Bypass Vulnerability","knownRansomwareCampaignUse":"Known"}},"related_cves":[{"value":"CVE-2022-44698","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}},{"id":178,"advisory_id":"3fedb12f-f539-47aa-a6d0-941d53b15d64","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-33825","source_published_at":"2026-04-22T00:00:00+00:00","published_at":"2026-10-24T20:41:59.924133+00:00","extraction_method":"structured","technologies":["core-kev","defender"],"cve_ids":["CVE-2026-33825"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Microsoft Defender Insufficient Granularity of Access Control Vulnerability","summary":"Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally. CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","evidence":"kev:CVE-2026-33825","products":[{"name":{"value":"Defender","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2026-33825","aliases":["CVE-2026-33825"],"affected":[],"modified":"2026-04-22T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-1220"],"cveID":"CVE-2026-33825","notes":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825 ; https://nvd.nist.gov/vuln/detail/CVE-2026-33825","dueDate":"2026-05-06","product":"Defender","dateAdded":"2026-04-22","vendorProject":"Microsoft","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.","known_exploited":true,"shortDescription":"Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.","vulnerabilityName":"Microsoft Defender Insufficient Granularity of Access Control Vulnerability","knownRansomwareCampaignUse":"Known"}},"related_cves":[{"value":"CVE-2026-33825","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}},{"id":167,"advisory_id":"395b7a2e-7ff2-4495-9a25-71bf4c180af3","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-45498","source_published_at":"2026-05-20T00:00:00+00:00","published_at":"2026-10-24T20:41:52.843739+00:00","extraction_method":"structured","technologies":["core-kev","defender"],"cve_ids":["CVE-2026-45498"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Microsoft Defender Denial of Service Vulnerability","summary":"Microsoft Defender contains an unspecified vulnerability that allows for denial of service. CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","evidence":"kev:CVE-2026-45498","products":[{"name":{"value":"Defender","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2026-45498","aliases":["CVE-2026-45498"],"affected":[],"modified":"2026-05-20T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":[],"cveID":"CVE-2026-45498","notes":"https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-45498 ; https://nvd.nist.gov/vuln/detail/CVE-2026-45498","dueDate":"2026-06-03","product":"Defender","dateAdded":"2026-05-20","vendorProject":"Microsoft","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.","known_exploited":true,"shortDescription":"Microsoft Defender contains an unspecified vulnerability that allows for denial of service.","vulnerabilityName":"Microsoft Defender Denial of Service Vulnerability","knownRansomwareCampaignUse":"Unknown"}},"related_cves":[{"value":"CVE-2026-45498","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}},{"id":163,"advisory_id":"1d73f907-5ca2-453f-b2a2-88da85177be0","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-41091","source_published_at":"2026-05-20T00:00:00+00:00","published_at":"2026-10-24T20:41:50.546804+00:00","extraction_method":"structured","technologies":["core-kev","defender"],"cve_ids":["CVE-2026-41091"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Microsoft Defender Link Following Vulnerability","summary":"Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally. CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","evidence":"kev:CVE-2026-41091","products":[{"name":{"value":"Defender","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2026-41091","aliases":["CVE-2026-41091"],"affected":[],"modified":"2026-05-20T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-59"],"cveID":"CVE-2026-41091","notes":"https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-41091 ; https://nvd.nist.gov/vuln/detail/CVE-2026-41091","dueDate":"2026-06-03","product":"Defender","dateAdded":"2026-05-20","vendorProject":"Microsoft","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.","known_exploited":true,"shortDescription":"Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.","vulnerabilityName":"Microsoft Defender Link Following Vulnerability","knownRansomwareCampaignUse":"Unknown"}},"related_cves":[{"value":"CVE-2026-41091","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}}],"next_after":3598,"next_before":163}