What is CVE-2025-26636?

CVE-2025-26636 is a medium-severity vulnerability in Microsoft Windows_11_24h2, classified under CWE-1037. CVSS score: 5.5/10. Published 2025-07-08.

How severe is CVE-2025-26636?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Microsoft Windows_11_24h2

CVE-2025-26636

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

EPSS: 0.004 (32.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Microsoft Windows_11_24h2
Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
Microsoft Windows Server 2025 — versions 10.0.26100.0
Microsoft Windows_server_2025
Microsoft Windows Server 2025 (Server Core Installation) — versions 10.0.26100.0

Weakness classification (CWE)

CWE-1037

References

secure@microsoft.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-26636?: CVE-2025-26636 is a medium-severity vulnerability in Microsoft Windows_11_24h2, classified under CWE-1037. CVSS score: 5.5/10. Published 2025-07-08.
How severe is CVE-2025-26636?: Medium severity. CVSS v3 base score is 5.5 out of 10.