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Windows Update Assistant

CVE-2021-43211 — Windows 10 Update Assistant Elevation of Privilege Vulnerability

Important CVSS 5.5 EPSS 0.00743 📢 Publicly disclosed 2021-11 archive

Executive Summary

None

Overview

5.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Elevation of Privilege
Released Nov 9 2021
Last Updated Nov 9 2021
Publicly Disclosed Yes
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00743 — 0.49843 percentile
NVD CVSS 5.5 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.8

EPSS Score

0.00743
probability of exploitation in the next 30 days
0.49843 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

1 affected product
Product KB Article Severity Impact Restart Required
Windows Update Assistant Release Notes (Security Update) Important Elevation of Privilege Maybe

Patches

1 patch
Article Type Restart
Release Notes Security Update Maybe

Known Exploits

On This Page