CVE-2025-47978: Windows Kerberos Denial of Service Vulnerability
Overview
- Severity
- Medium (CVSS 6.5)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
- Category
- Denial of Service
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- More Likely
- Patch Tuesday
- 2025-Jul
- Released
- 2025-07-08
- EPSS Score
- 0.61% (percentile: 69.8%)
Description
Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.
Affected Products (5)
Windows
- Windows Server 2022
- Windows Server 2022 (Server Core installation)
- Windows Server 2025 (Server Core installation)
- Windows Server 2022, 23H2 Edition (Server Core installation)
- Windows Server 2025
Security Updates (3)
Acknowledgments
<a href="https://www.linkedin.com/in/eliran-partush-22248710/">Eliran Partush </a> with <a href="https://www.silverfort.com/">Silverfort</a>, <a href="https://www.linkedin.com/in/dorsegal/">Dor Segal</a> with <a href="https://www.silverfort.com/">Silverfort</a>
Revision History
- 2025-07-08: Information published.