CVE-2025-59184: Storage Spaces Direct Information Disclosure Vulnerability

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-14 · updated 2026-06-17
Weakness: CWE-200

Description

Exposure of sensitive information to an unauthorized actor in Windows High Availability Services allows an authorized attacker to disclose information locally.

Affected products

Microsoft Windows Server 2016: through 10.0.14393.8519
Microsoft Windows Server 2019: before 10.0.17763.7919 — fixed in 10.0.17763.7919
Microsoft Windows Server 2022: before 10.0.20348.4294 — fixed in 10.0.20348.4294
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): before 10.0.25398.1913 — fixed in 10.0.25398.1913
Microsoft Windows Server 2025: through 10.0.26100.6899
Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.8519 — fixed in 10.0.14393.8519
Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.7919 — fixed in 10.0.17763.7919
Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.4294 — fixed in 10.0.20348.4294
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1913 — fixed in 10.0.25398.1913
Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.6899 — fixed in 10.0.26100.6899

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2019 10.0.17763.7919; Microsoft Windows Server 2022 10.0.20348.4294; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1913; Microsoft Windows Server 2016 10.0.14393.8519; Microsoft Windows Server 2019 10.0.17763.7919; Microsoft Windows Server 2022 10.0.20348.4294; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1913; Microsoft Windows Server 2025 10.0.26100.6899. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59184

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