Medium 5.5Published Oct 14, 2025

CVE-2025-59188Microsoft Failover Cluster Information Disclosure Vulnerability

Updated under an hour ago (Oct 27, 2026, 1:40 PM ET)

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It affects Microsoft Windows Server 2012 and 6 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Microsoft Windows Server 2012

Exploited in the last 30 days

Exposure of sensitive information to an unauthorized actor in Windows Failover Cluster allows an authorized attacker to disclose information locally.

CVSS: 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: microsoft
NVD analysis: Analyzed
Record last updated: Feb 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Microsoft Windows Server 2012 microsoft:windows_server_2012 (from the name)	from 6.2.9200.0 before 6.2.9200.25722	CNA record
Microsoft Windows Server 2012 R2 microsoft:windows_server_2012_r2 (from the name)	from 6.3.9600.0 before 6.3.9600.22824	CNA record
Microsoft Windows Server 2016 microsoft:windows_server_2016 (from the name)	from 10.0.14393.0 before 10.0.14393.8519	CNA record
Microsoft Windows Server 2019 microsoft:windows_server_2019 (from the name)	from 10.0.17763.0 before 10.0.17763.7919	CNA record
Microsoft Windows Server 2022 microsoft:windows_server_2022 (from the name)	from 10.0.20348.0 before 10.0.20348.4294	CNA record
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) microsoft:windows_server_2022_23h2	from 10.0.25398.0 before 10.0.25398.1913	CNA record
Microsoft Windows Server 2025 microsoft:windows_server_2025 (from the name)	from 10.0.26100.0 before 10.0.26100.6899	CNA record
microsoft windows_server_2012 microsoft:windows_server_2012	r2	NVD
microsoft windows_server_2016 microsoft:windows_server_2016	before 10.0.14393.8519	NVD
microsoft windows_server_2019 microsoft:windows_server_2019	before 10.0.17763.7919	NVD
1–10 of 13

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59188	vendor-advisory, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.