CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.0. It affects Microsoft. It is listed in CISA's Known Exploited Vulnerabilities catalog, indicating confirmed active exploitation in the wild. Its EPSS score suggests a 63.1% probability of exploitation in the next 30 days. It may lead to a denial-of-service condition.
CISA KEV Details
Status: This CVE is listed in CISA's Known Exploited Vulnerabilities catalog.
Ransomware use: Unknown
Added to KEV: 2026-05-20
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.
CVE
CVE-2026-45498
Severity
MEDIUM
CVSS
4
EPSS
63.08%
Microsoft
Original NVD Description
Microsoft Defender Denial of Service Vulnerability
Related CVEs
Other vulnerabilities affecting the same vendor(s)