SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-21313

Windows Security Account Manager (SAM) Denial of Service Vulnerability

MEDIUM 6.5EPSS 1.63%

Does this matter?

Lower severity and a low EPSS score (1.63%). Track it; it rarely justifies an emergency change on its own.

Description

Windows Security Account Manager (SAM) Denial of Service Vulnerability

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
1.63% probability · 75th percentile
CISA KEV
Not listed
Weakness
CWE-833
Affected
microsoft/windows 11 24h2 · microsoft/windows server 2022 23h2 · microsoft/windows server 2025
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.