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CVE-2021-26892medium

Windows Extensible Firmware Interface Security Feature Bypass Vulnerability

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.2epss 1.1%
exploitation probability
1.1%top 39% of all CVEs
observed exploitation
nono source reports it
Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C
Affected products
Microsoft · Windows 10 Version 1607Microsoft · Windows 10 Version 1803Microsoft · Windows 10 Version 1809Microsoft · Windows 10 Version 1909Microsoft · Windows 10 Version 2004Microsoft · Windows 10 Version 20H2Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)Microsoft · Windows Server, version 1909 (Server Core installation)Microsoft · Windows Server version 2004Microsoft · Windows Server version 20H2
References
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26892https://www.zerodayinitiative.com/advisories/ZDI-21-330/