CVE-2025-21212: Internet Connection Sharing (ICS) Denial of Service Vulnerability
First published: Tue Feb 11 2025(Updated: )
Internet Connection Sharing (ICS) Denial of Service Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows 11 | =24H2 | |
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows 11 | =23H2 | |
| Microsoft Windows 11 | =24H2 | |
| Microsoft Windows 11 | =22H2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows 11 | =22H2 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows 11 | =23H2 | |
| =24H2 | ||
| =1607 | ||
| =24H2 | ||
| =1607 | ||
| =23H2 | ||
| =23H2 | ||
| =22H2 | ||
| =1809 | ||
| =1809 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21212?
CVE-2025-21212 has a severity rating which indicates it can lead to a denial of service.
How do I fix CVE-2025-21212?
To fix CVE-2025-21212, apply the latest security patch specific to your affected Windows version.
Which versions of Windows are affected by CVE-2025-21212?
CVE-2025-21212 affects multiple versions of Windows including Windows 10 22H2 and Windows 11 24H2.
Is there a workaround for CVE-2025-21212?
Currently, implementing a workaround is not recommended as the best resolution is to apply the security updates.
What type of vulnerability is CVE-2025-21212?
CVE-2025-21212 is classified as an Internet Connection Sharing denial of service vulnerability.
- collector/mitre-cve
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- collector/msrc-cve
- source/Microsoft
- agent/software-canonical-lookup
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- agent/softwarecombine
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/severity
- agent/weakness
- agent/author
- agent/source
- agent/event
- agent/tags
- collector/msrc
- vendor/microsoft
- canonical/microsoft windows 10
- version/microsoft windows 10/22h2
- canonical/microsoft windows 11
- version/microsoft windows 11/24h2
- version/microsoft windows 10/21h2
- version/microsoft windows 10/1809
- canonical/microsoft windows server 2025
- canonical/microsoft windows server 2022
- version/microsoft windows 10/1607
- canonical/microsoft windows server 2016
- version/microsoft windows 11/23h2
- version/microsoft windows 11/22h2
- canonical/microsoft windows server 2019
- canonical/microsoft windows server 2022 23h2