CVE-2021-38634

HIGH

Microsoft Windows Update Client - Privilege Escalation

Title source: llm
STIX 2.1

Description

Microsoft Windows Update Client Elevation of Privilege Vulnerability

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-1075/

Scores

CVSS v3 7.1
EPSS 0.0081
EPSS Percentile 52.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Details

CWE
CWE-269
Status published
Products (12)
microsoft/windows_10
microsoft/windows_10 20h2
microsoft/windows_10 21h1
microsoft/windows_10 1607
microsoft/windows_10 1809
microsoft/windows_10 1909
microsoft/windows_10 2004
microsoft/windows_server_2016
microsoft/windows_server_2016 20h2
microsoft/windows_server_2016 2004
... and 2 more
Published Sep 15, 2021
Tracked Since Feb 18, 2026