CVE-2026-45498

Microsoft Defender Denial of Service Vulnerability
63.1%
EPSS
99%
Percentile
Yes
Known exploited
0
APAC news · 90d
Summary

Microsoft Defender contains an unspecified vulnerability that allows for denial of service.

Vendor
Microsoft
Product
Defender
Added to KEV
May 20, 2026
Remediation due
Jun 3, 2026 (US federal deadline)
Ransomware use
Not known
EPSS
63.1% as of Nov 12
In the news
  • No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
  • none recorded