CVE-2026-45498
Known Exploited (CISA KEV)CRITICAL
9.8
CVSS Severity Score
Vulnerability Description
Microsoft Defender is vulnerable to Microsoft Defender Denial of Service Vulnerability. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Platforms (CPE)
📦
Microsoft
