{"schema_version":"1","data":[{"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}}],"next_after":167,"next_before":167}