๐Ÿ” CVE Alert

CVE-2026-45498

MEDIUM 4.0 โš ๏ธ CISA KEV

Microsoft Defender Denial of Service Vulnerability

CVSS Score
4.0
EPSS Score
0.0%
EPSS Percentile
0th

Microsoft Defender Denial of Service Vulnerability

Vendor microsoft
Product microsoft defender antimalware platform
Ecosystems
Industries
TechnologyEnterprise
Published May 20, 2026
Last Updated May 20, 2026
โš ๏ธ Actively Exploited โ€” Act Now

Get instant alerts for microsoft microsoft defender antimalware platform

This vulnerability is actively exploited in the wild. Set up free real-time alerts so you're first to know about threats like CVE-2026-45498.

Get Free Alerts โ†’ Free ยท No credit card ยท 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

Microsoft / Microsoft Defender Antimalware Platform
-

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
msrc.microsoft.com: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45498 cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498