Vulnerability · Published Nov 10, 2021 · Assigned by microsoft
CVE-2021-42286Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability
High 7.8
In plain English
A high-severity security flaw in Windows 10 Version 2004 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.5%top 57.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 2004 | 10.0.0 – before 10.0.19041.1348 |
| Microsoft | Windows 10 Version 20H2 | 10.0.0 – before 10.0.19042.1348 |
| Microsoft | Windows 10 Version 21H1 | 10.0.0 – before 10.0.19043.1348 |
| 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 Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42286 x_refsource_MISC, x_transferred