CVE-2025-53809

MEDIUM

Windows 11 24H2 and Windows Server 2025 < 10.0.26100.6508 - Denial of Service in LSASS

Title source: llm
STIX 2.1

Description

Improper input validation in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.

References (1)

Core 1
Core References

Scores

CVSS v3 6.5
EPSS 0.0048
EPSS Percentile 65.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (2)
microsoft/windows_11_24h2 < 10.0.26100.6508
microsoft/windows_server_2025 < 10.0.26100.6508
Published Sep 09, 2025
Tracked Since Feb 18, 2026