CVE-2026-45498

7.5 highKEVEPSS 63%

High (7.5) in Microsoft Defender. In CISA KEV since 2026-05-20. EPSS 63% chance of exploitation in the next 30 days.

Microsoft Defender Denial of Service Vulnerability

Severity

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 63% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV: listed 2026-05-20, due 2026-06-03
CWE: CWE-400
Published: 2026-05-20
Modified: 2026-07-23
Record from: the NVD, synced 2026-10-19