CVE-2025-53156: Windows Storage Port Driver Information Disclosure Vulnerability

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-12 · updated 2026-06-17
Weakness: CWE-200

Description

Exposure of sensitive information to an unauthorized actor in Storage Port Driver allows an authorized attacker to disclose information locally.

Affected products

Microsoft Windows 11: before 10.0.26100.4851 — fixed in 10.0.26100.4851
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): before 10.0.25398.1791 — fixed in 10.0.25398.1791
Microsoft Windows Server 2025: before 10.0.26100.4851 — fixed in 10.0.26100.4851
Microsoft Windows 11: from 10.0.26100.0 before 10.0.26100.4946 — fixed in 10.0.26100.4946
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1791 — fixed in 10.0.25398.1791
Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.4946 — fixed in 10.0.26100.4946

How to fix

Upgrade to a fixed version: Microsoft Windows 11 10.0.26100.4851; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1791; Microsoft Windows Server 2025 10.0.26100.4851; Microsoft Windows 11 10.0.26100.4946; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1791; Microsoft Windows Server 2025 10.0.26100.4946. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53156

Get alerted when CVE-2025-53156 or the next vulnerability affects your stack