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CVE Vulnerability Details :
CVE-2026-45498
PUBLISHED
More InfoOfficial Page
Assigner-microsoft
Assigner Org ID-f38d906d-7342-40ea-92c1-6c4a2c6478c8
View Known Exploited Vulnerability (KEV) details
Published At-20 May, 2026 | 13:09
Updated At-26 May, 2026 | 16:57
Rejected At-
▼CVE Numbering Authority (CNA)
Microsoft Defender Denial of Service Vulnerability

Microsoft Defender Denial of Service Vulnerability

Affected Products
Vendor
Microsoft CorporationMicrosoft
Product
Microsoft Defender Antimalware Platform
Versions
Affected
  • From 4.0.0.0 before 4.18.26040.7 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-400CWE-400: Uncontrolled Resource Consumption
Type: CWE
CWE ID: CWE-400
Description: CWE-400: Uncontrolled Resource Consumption
Metrics
VersionBase scoreBase severityVector
3.14.0MEDIUM
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
Version: 3.1
Base score: 4.0
Base severity: MEDIUM
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45498
vendor-advisory
patch
Hyperlink: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45498
Resource:
vendor-advisory
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-400CWE-400 Uncontrolled Resource Consumption
Type: CWE
CWE ID: CWE-400
Description: CWE-400 Uncontrolled Resource Consumption
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
kev
dateAdded:
2026-05-20
reference:
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
CVE-2026-45498 added to CISA KEV2026-05-20 00:00:00
Event: CVE-2026-45498 added to CISA KEV
Date: 2026-05-20 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498
government-resource
Hyperlink: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45498
Resource:
government-resource
Details not found