How severe is CVE-2025-47979?

CVE-2025-47979 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-47979 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-47979?

CVE-2025-47979 primarily affects Microsoft Windows Server 2022 23h2. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-47979?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-47979 have an EU (EUVD) identifier?

Yes. CVE-2025-47979 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34367.

When was CVE-2025-47979 published?

CVE-2025-47979 was published on 2025-10-14 and last updated on 2026-06-17.

CVE-2025-47979

CVE-2025-47979 is a medium-severity vulnerability in Microsoft Windows Server 2022 23h2 with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-532.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34367
Weakness: CWE-532
Affected product: Microsoft Windows Server 2022 23h2
Published: 2025-10-14
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2025-47979?: Insertion of sensitive information into log file in Windows Failover Cluster allows an authorized attacker to disclose information locally.
How severe is CVE-2025-47979?: CVE-2025-47979 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-47979 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-47979?: CVE-2025-47979 primarily affects Microsoft Windows Server 2022 23h2. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-47979?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-47979 have an EU (EUVD) identifier?: Yes. CVE-2025-47979 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34367.
When was CVE-2025-47979 published?: CVE-2025-47979 was published on 2025-10-14 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47979

Affected products (2)

cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*

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