CVE-2025-48809

Windows Secure Kernel Mode Information Disclosure Vulnerability

State: Published
Severity: 5.5 Medium
Published: Jul 8, 2025
Updated: Feb 13, 2026
Reserved: May 26, 2025

Description

Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	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	microsoft

Weaknesses

CWE-1037 Processor Optimization Removal or Modification of Security-critical Code

Affected Products

Product	Versions
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.4652Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.4652Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.4652Affected

References

Windows Secure Kernel Mode Information Disclosure Vulnerabilityvendor-advisorypatch

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.