Vulnerability · Published Jul 16, 2021 · Assigned by microsoft
CVE-2021-34458Windows Kernel Remote Code Execution Vulnerability
Critical 9.9
In plain English
A critical-severity security flaw in Windows Server 2016 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 86% of all known vulnerabilities).
Severity (CVSS 3.1)9.9Critical
Exploit odds (30 days)2.6%top 14.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Windows Kernel Remote Code Execution Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2016 | 10.0.14393.0 – before 10.0.14393.4530 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – before 10.0.14393.4530 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – before 10.0.17763.2061 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – before 10.0.17763.2061 |
| Microsoft | Windows Server version 2004 | 10.0.0 – before 10.0.19041.1110 |
| Microsoft | Windows Server version 20H2 | 10.0.0 – before 10.0.19042.1110 |
References
- Windows Kernel Remote Code Execution Vulnerability vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34458 x_refsource_MISC, x_transferred