CVE-2025-53803 MEDIUM

CVE-2025-53803: Windows Kernel Memory Information Disclosure Vulnerability

Vendor Microsoft
Product Windows 10 Version 1507
Weakness CWE-209 · Error message info leak
Published September 9, 2025
Last update February 20, 2026

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.

Key dates

02Disclosure timeline

September 9, 2025 CVE published
February 20, 2026 Record updated