What’s Vulnerable › Vulnerabilities

CVE-2021-42297: Windows 10 Update Assistant Elevation of Privilege Vulnerability

• Severity: medium (CVSS 6.9 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-24 · updated 2026-08-19
• Weakness: CWE-59

Description

Windows 10 Update Assistant Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows Update Assistant: all versions
• Microsoft Windows Update Assistant: from 10.0.0 before publication — fixed in publication

How to fix

Upgrade to a fixed version: Microsoft Windows Update Assistant publication. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42297
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42297
• https://www.zerodayinitiative.com/advisories/ZDI-21-1334/

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