CVE-2025-26636
published 2025-07-08CVE-2025-26636: Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
PriorityP425medium5.5CVSS 3.1
AVLACLPRLUINSUCHINAN
EPSS
0.41%
33.2th percentile
Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_11_24h2 | < 10.0.26100.4652 | 10.0.26100.4652 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.4652 | 10.0.26100.4652 |
| microsoft | windows_server_2025 | < 10.0.26100.4652 | 10.0.26100.4652 |
| microsoft | windows_server_2025 | >= 10.0.26100.0 < 10.0.26100.4652 | 10.0.26100.4652 |
| msrc | windows_11_version_24h2_for_arm64-based_systems | — | — |
| msrc | windows_server_2025 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
vendor_msrc5.5MEDIUM
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Microsoft
Windows Kernel Information Disclosure Vulnerability
vendor_msrc·2025-07-08·CVSS 5.5
CVE-2025-26636 [MEDIUM] CWE-1037 Windows Kernel Information Disclosure Vulnerability
Windows Kernel Information Disclosure Vulnerability
Description: Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
FAQ: What type of information could be disclosed by this vulnerability?
Exploiting this vulnerability could allow the disclosure of certain kernel memory content.
Windows Kernel: Windows Kernel
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Information Disclosure
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062553
Reference: https://support.microsoft.com/help/5062553
GHSA
GHSA-fr45-pxw5-5x8j: Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information local
ghsa_unreviewed·2025-07-08
CVE-2025-26636 [MEDIUM] CWE-1037 GHSA-fr45-pxw5-5x8j: Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information local
Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-07-08
Published