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MSRC compact vulnerability detail

CVE-2025-47979 · Microsoft Failover Cluster Information Disclosure Vulnerability

Insertion of sensitive information into log file in Windows Failover Cluster allows an authorized attacker to disclose information locally.

Severity
Important
Impact
Information Disclosure
CVSS
5.5 base · 4.8 temporal
Release
2025-10-14
Signals
Windows Failover Cluster Information Disclosure Exploited: No Publicly disclosed: No Exploitability: Exploitation Less Likely
CWE
CWE-532: Insertion of Sensitive Information into Log File
Patch Diff
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Resolved binary override
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Description
Insertion of sensitive information into log file in Windows Failover Cluster allows an authorized attacker to disclose information locally.
FAQ / Articles
Windows Failover Cluster Information Disclosure Vulnerability
Insertion of sensitive information into log file in Windows Failover Cluster allows an authorized attacker to disclose information locally.
FAQ
What type of information could be disclosed by this vulnerability? An attacker that successfully exploited this vulnerability could recover any data that is put in the system logs on the Compute Instance including cleartext passwords.
FAQ
What further actions should I take to protect my environment after applying the fix? Even after applying the security update, residual sensitive information may still exist in system logs. We strongly recommend that administrator users change their passwords to mitigate any potential risk from previously exposed credentials.