CVE-2025-59259 MEDIUM

CVE-2025-59259: Windows Local Session Manager (LSM) Denial of Service Vulnerability

Vendor Microsoft
Product Windows 10 Version 1507
Weakness CWE-1287
Published October 14, 2025
Last update February 22, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Improper validation of specified type of input in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.

Key dates

02Disclosure timeline

October 14, 2025 CVE published
February 22, 2026 Record updated

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