CVE-2026-45498

Microsoft Defender Denial of Service Vulnerability

CVSS v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45498	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:defender_antimalware_platform:*:*:*:*:*:*:*:*

History

26 May 2026, 20:00

Type	Values Removed	Values Added
CWE	~~NVD-CWE-noinfo~~

20 May 2026, 19:05

Type	Values Removed	Values Added
CPE		cpe:2.3:a:microsoft:defender_antimalware_platform::::::::
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45498 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45498 - Vendor Advisory
References	~~() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498 -~~	() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498 - Third Party Advisory, US Government Resource
First Time		Microsoft Microsoft defender Antimalware Platform
CWE		NVD-CWE-noinfo

20 May 2026, 18:16

Type	Values Removed	Values Added
CWE		CWE-400
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498 -

20 May 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-20 13:16

Updated : 2026-05-28 10:49

NVD link : CVE-2026-45498

Mitre link : CVE-2026-45498

CVE.ORG link : CVE-2026-45498

JSON object : View

Products Affected

microsoft

defender_antimalware_platform

CWE

CWE-400

Uncontrolled Resource Consumption

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