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CVE-2026-45498Microsoft Defender Denial of Service Vulnerability
Microsoft Defender Denial of Service Vulnerability
4.0 MEDIUMEPSS 63.07%⚡ Known Exploited (CISA KEV)NVD: Published
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 4.0 | MEDIUM | 3.1microsoft (CNA) | 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 |
Details
- CVE ID
- CVE-2026-45498
- Status
- Published
- Assigner (CNA)
- microsoft
- Published
- May 20, 2026
- Last modified
- 2026-08-10 15:13 UTC
- Weaknesses
- CWE-400 · Uncontrolled Resource Consumption
Affected Products
As published by the CNA in the CVE record.
MicrosoftMicrosoft Defender Antimalware Platform1 version range
- 4.0.0.0 before 4.18.26040.7
References
Sources
- NVD (unavailable at last refresh)
- CVE.org
- CISA KEV
- FIRST EPSS