High7.8Microsoft Server

High [CVE-2021-34503] Microsoft Windows Media Foundation Remote Code Execution Vulnerability

This high-severity Microsoft Server advisory covers CVE-2021-34503 affecting Windows Server 2019 (Server Core installation).

CVE-2021-34503 Published Jul 14, 2021Updated by vendor Aug 10, 2026

CVE-2021-34503

Affected products & platforms

Microsoft ServerWindows Server

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Summary

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation).

Affected versions

Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.2061
Windows 10 Version 1809 10.0.0 before 10.0.17763.2061
Windows 10 Version 1909 10.0.0 before 10.0.18363.1679
Windows Server 2019 10.0.17763.0 before 10.0.17763.2061
Windows Server 2019 (Server Core installation) 10.0.17763.0 before 10.0.17763.2061

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions

10.0.17763.2061
10.0.18363.1679

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Mitigation

Upgrade to a fixed release: 10.0.17763.2061, 10.0.18363.1679. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Discussion(0)

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