CVE-2025-48809: Microsoft Windows 11 24h2

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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

Affected products

• Microsoft Windows 11 24h2: before 10.0.26100.4652 (fixed in 10.0.26100.4652)
• Microsoft Windows Server 2025: before 10.0.26100.4652 (fixed in 10.0.26100.4652)

Published 2025-07-08. Last modified 2026-06-17.