Vulnerability · Published Jan 12, 2021 · Assigned by microsoft
CVE-2021-1691Windows Hyper-V Denial of Service Vulnerability
High 7.7
In plain English
A high-severity security flaw in Windows 10 Version 1909 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.1% (higher than 91% of all known vulnerabilities).
Severity (CVSS 3.1)7.7High
Exploit odds (30 days)4.1%top 9.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Windows Hyper-V Denial of Service Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server version 20H2 | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1909 | 10.0.0 – before publication |
| Microsoft | Windows Server, version 1909 (Server Core installation) | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 2004 | 10.0.0 – before publication |
| Microsoft | Windows Server version 2004 | 10.0.0 – before publication |
References
- Windows Hyper-V Denial of Service Vulnerability vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1691 x_refsource_MISC, x_transferred