CVE-2025-26647: Windows Kerberos Elevation of Privilege Vulnerability
First published: Tue Apr 08 2025(Updated: )
<p>Improper input validation in Windows Kerberos allows an unauthorized attacker to elevate privileges over a network.</p>
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2012 R2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-26647?
CVE-2025-26647 has a critical severity rating due to the potential for unauthorized privilege escalation.
How do I fix CVE-2025-26647?
To fix CVE-2025-26647, apply the latest security updates provided by Microsoft for the affected Windows Server versions.
Which systems are affected by CVE-2025-26647?
CVE-2025-26647 affects various versions of Windows Server, including 2008, 2012, 2016, 2019, 2022, and 2025.
What type of vulnerability is CVE-2025-26647?
CVE-2025-26647 is classified as an elevation of privilege vulnerability due to improper input validation in Windows Kerberos.
Can CVE-2025-26647 be exploited remotely?
Yes, an attacker can exploit CVE-2025-26647 over a network to gain elevated privileges.
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