CVE-2025-49751
MEDIUMCVSS 6.8/10EPSS 0.43%
Last modified
CVE-2025-49751 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.
Metrics
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.8330 |
| Microsoft | Windows 10 1809 | < 10.0.17763.7678 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.6216 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.6216 |
| Microsoft | Windows 11 22h2 | < 10.0.22621.5768 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.5768 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.4851 |
| Microsoft | Windows Server 2016 | < 10.0.14393.8330 |
| Microsoft | Windows Server 2019 | < 10.0.17763.7678 |
| Microsoft | Windows Server 2022 | < 10.0.20348.3989 |
| Microsoft | Windows Server 2022 23h2 | < 10.0.25398.1791 |
| Microsoft | Windows Server 2025 | < 10.0.26100.4851 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-49751?
Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.
How severe is CVE-2025-49751?
CVE-2025-49751 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.
How do I fix CVE-2025-49751?
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-2025-49751?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST