CVE-2025-49751
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-08-12
Last updated on: 2025-08-15
Assigner: Microsoft Corporation
Description
Description
Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_10_1607 | to 10.0.14393.8330 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.7678 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.6216 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.6216 (exc) |
| microsoft | windows_11_22h2 | to 10.0.22621.5768 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.5768 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.4851 (exc) |
| microsoft | windows_server_2016 | to 10.0.14393.8330 (exc) |
| microsoft | windows_server_2019 | to 10.0.17763.7678 (exc) |
| microsoft | windows_server_2022 | to 10.0.20348.3989 (exc) |
| microsoft | windows_server_2022_23h2 | to 10.0.25398.1791 (exc) |
| microsoft | windows_server_2025 | to 10.0.26100.4851 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-820 | The product utilizes a shared resource in a concurrent manner but does not attempt to synchronize access to the resource. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a missing synchronization issue in Windows Hyper-V that allows an authorized attacker to cause a denial of service over an adjacent network.
How can this vulnerability impact me? :
An attacker with authorization can exploit this vulnerability to deny service, potentially disrupting network availability and causing downtime in environments using Windows Hyper-V.
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