CVE-2025-21216
MEDIUMCVSS 6.5/10EPSS 0.93%
Last modified
CVE-2025-21216 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Internet Connection Sharing (ICS) Denial of Service Vulnerability. EPSS estimates a 0.93% chance of exploitation in the next 30 days.
Description
Internet Connection Sharing (ICS) Denial of Service Vulnerability
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.7785 |
| Microsoft | Windows 10 1809 | < 10.0.17763.6893 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.5487 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.5487 |
| Microsoft | Windows 11 22h2 | < 10.0.22621.4890 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.4890 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.3194 |
| 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 23h2 | < 10.0.25398.1425 |
| Microsoft | Windows Server 2025 | < 10.0.26100.3194 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21216Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-21216?
Internet Connection Sharing (ICS) Denial of Service Vulnerability
How severe is CVE-2025-21216?
CVE-2025-21216 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.
How do I fix CVE-2025-21216?
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-2025-21216?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST