Information Disclosure Vulnerability in Microsoft Failover Cluster Virtual Driver
CVE-2025-59260

5.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Windows Server 2025 (server Core Installation)
Vendor
CVE Published:
14 October 2025

What is CVE-2025-59260?

The Microsoft Failover Cluster Virtual Driver is susceptible to a vulnerability that enables authorized attackers to gain unauthorized access to sensitive information stored locally. This exposure can pose significant security risks as attackers may exploit this weakness to retrieve confidential data, highlighting the importance of prompt security measures and patches.

Affected Version(s)

Windows Server 2016 (Server Core installation) x64-based Systems 10.0.14393.0 < 10.0.14393.8519

Windows Server 2016 x64-based Systems 10.0.14393.0 < 10.0.14393.8519

Windows Server 2019 (Server Core installation) x64-based Systems 10.0.17763.0 < 10.0.17763.7919

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-59260 : Information Disclosure Vulnerability in Microsoft Failover Cluster Virtual Driver