CVE-2025-47978

Name: CVE-2025-47978
Creator: NVD / NIST
Published: 2025-07-08T17:15:38.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.91%

Last modified Jun 17, 2026

CVE-2025-47978 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.. EPSS estimates a 1.91% chance of exploitation in the next 30 days.

Description

Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.91%

77.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Microsoft	Windows Server 2022	< 10.0.20348.3932
Microsoft	Windows Server 2022 23h2	< 10.0.25398.1732
Microsoft	Windows Server 2025	< 10.0.26100.4652

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47978Vendor Advisory

Timeline

Published: Jul 8, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-47978?

Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.

How severe is CVE-2025-47978?

CVE-2025-47978 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.91% probability of exploitation in the next 30 days.

How do I fix CVE-2025-47978?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-47978?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST