Vulnerability · Published Nov 10, 2021 · Assigned by microsoft
CVE-2021-42274Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability
Medium 6.8
In plain English
A medium-severity security flaw in Windows 10 Version 1607 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.7%top 47.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – before 10.0.14393.4770 |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – before 10.0.17763.2300 |
| Microsoft | Windows 10 Version 2004 | 10.0.0 – before 10.0.19041.1348 |
| Microsoft | Windows 10 Version 21H1 | 10.0.0 – before 10.0.19043.1348 |
| Microsoft | Windows 11 version 21H2 | 10.0.22000.0 – before 10.0.22000.318 |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – before 10.0.14393.4770 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – before 10.0.14393.4770 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – before 10.0.17763.2300 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – before 10.0.17763.2300 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.350 |
| Microsoft | Windows Server version 2004 | 10.0.0 – before 10.0.19041.1348 |
| Microsoft | Windows Server version 20H2 | 10.0.0 – before 10.0.19041.1348 |
References
- Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42274 x_refsource_MISC, x_transferred