Vulnerability · Published Aug 12, 2021 · Assigned by microsoft
CVE-2021-26431Windows Recovery Environment Agent 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 1.2% (higher than 68% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)1.2%top 32.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Windows Recovery Environment Agent Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 2004 | 10.0.0 – before 10.0.19041.1165 |
| Microsoft | Windows 10 Version 20H2 | 10.0.0 – before 10.0.19042.1165 |
| Microsoft | Windows 10 Version 21H1 | 10.0.0 – before 10.0.19043.1165 |
| Microsoft | Windows Server version 2004 | 10.0.0 – before 10.0.19041.1165 |
| Microsoft | Windows Server version 20H2 | 10.0.0 – before 10.0.19042.1165 |
References
- Windows Recovery Environment Agent Elevation of Privilege Vulnerability vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26431 x_refsource_MISC, x_transferred
- https://www.zerodayinitiative.com/advisories/ZDI-21-1053/ x_refsource_MISC, x_transferred