CVE-2021-27090

high

Description

Windows Secure Kernel Mode Elevation of Privilege Vulnerability

References

https://www.bleepingcomputer.com/news/microsoft/windows-downdate-tool-lets-you-unpatch-windows-systems/

https://www.safebreach.com/blog/downgrade-attacks-using-windows-updates/

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27090

Details

Source: Mitre, NVD

Published: 2021-04-13

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High