CVE-2025-21350: Windows Kerberos Denial of Service Vulnerability
First published: Tue Feb 11 2025(Updated: )
Windows Kerberos Denial of Service Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 11 | =23H2 | |
| Windows 11 | =22H2 | |
| Windows 11 | =22H2 | |
| Windows 11 | =24H2 | |
| Windows 11 | =24H2 | |
| Windows 11 | =23H2 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows 10 | <10.0.10240.20915 | |
| Microsoft Windows 10 | <10.0.10240.20915 | |
| Microsoft Windows 10 | <10.0.14393.7785 | |
| Microsoft Windows 10 | <10.0.14393.7785 | |
| Microsoft Windows 10 | <10.0.17763.6893 | |
| Microsoft Windows 10 | <10.0.17763.6893 | |
| Microsoft Windows 10 | <10.0.19044.5487 | |
| Microsoft Windows 10 | <10.0.19045.5487 | |
| Windows 11 | <10.0.22621.4890 | |
| Windows 11 | <10.0.22631.4890 | |
| Windows 11 | <10.0.26100.3194 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2-sp1 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | <10.0.14393.7785 | |
| Microsoft Windows Server 2019 | <10.0.17763.6893 | |
| Microsoft Windows Server 2022 | <10.0.20348.3207 | |
| Microsoft Windows Server 2022 | <10.0.25398.1425 | |
| Microsoft Windows Server 2025 | <10.0.26100.3194 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =22H2 | |
| Windows 10 | =22H2 | |
| Windows 10 | =22H2 | |
| Windows 10 | =1607 | |
| Windows 10 | =1607 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | ||
| Windows 10 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21350?
CVE-2025-21350 has a severity rating that reflects the potential for a denial of service attack on affected Windows systems.
How do I fix CVE-2025-21350?
To fix CVE-2025-21350, apply the relevant security patches provided by Microsoft for your specific Windows version.
Which versions of Windows are affected by CVE-2025-21350?
CVE-2025-21350 affects multiple versions of Windows, including Windows 10, Windows Server 2022, Windows Server 2025, and several others.
What type of vulnerability is CVE-2025-21350?
CVE-2025-21350 is classified as a denial of service vulnerability in the Windows Kerberos authentication system.
Is there a workaround for CVE-2025-21350?
Currently, there are no known effective workarounds for CVE-2025-21350 other than applying the necessary patches.
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- canonical/microsoft windows server 2012 r2
- canonical/microsoft windows server 2022 23h2
- canonical/microsoft windows server 2008 r2
- canonical/microsoft windows server
- canonical/microsoft windows server 2019
- canonical/windows 11
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- version/windows 11/24h2
- canonical/microsoft windows server 2022
- canonical/microsoft windows server 2016
- version/microsoft windows server/sp2
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- version/microsoft windows server/r2
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