CVE-2021-27070

high

Description

Windows 10 Update Assistant Elevation of Privilege Vulnerability

References

https://www.zerodayinitiative.com/advisories/ZDI-21-329/

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27070

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27070

Details

Source: Mitre, NVD

Published: 2021-03-11

Updated: 2026-08-19

Risk Information

CVSS v2

Base Score: 9.3

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

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.0088