{"cve":"CVE-2026-45498","nvd":{"published":"2026-05-20T13:16:36.780","modified":"2026-07-23T12:10:00.110","status":"Analyzed","description":"Microsoft Defender Denial of Service Vulnerability","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45498","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498"],"products":["microsoft:defender_antimalware_platform"],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-45498","score":0.63076,"percentile":0.99202,"date":"2026-10-31"},"kev":{"cve":"CVE-2026-45498","date_added":"2026-05-20","due_date":"2026-06-03","vendor":"Microsoft","product":"Defender","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}