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Windows Update Assistant

CVE-2021-36945 — Windows 10 Update Assistant Elevation of Privilege Vulnerability

Important CVSS 7.3 EPSS 0.01729 2021-08 archive

Executive Summary

None

Overview

7.3
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Elevation of Privilege
Released Aug 10 2021
Last Updated Aug 10 2021
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.01729 — 0.74624 percentile
NVD CVSS 7.3 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.4

EPSS Score

0.01729
probability of exploitation in the next 30 days
0.74624 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

1 affected product
Product KB Article Severity Impact Restart Required
Windows Update Assistant 4023814 (Security Update) Important Elevation of Privilege Maybe

Patches

1 patch
Article Type Restart
4023814 Security Update Maybe

Known Exploits

On This Page