CVE-2021-34439: Microsoft Windows Media Foundation Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2021-Jul

Released

2021-07-13

EPSS Score

2.82% (percentile: 86.1%)

Affected Products (6)

Windows

• Windows 10 for 32-bit Systems
• Windows 10 for x64-based Systems
• Windows 10 Version 1607 for 32-bit Systems
• Windows 10 Version 1607 for x64-based Systems
• Windows Server 2016
• Windows Server 2016 (Server Core installation)

Security Updates (2)

• 5004249
• 5004238

Acknowledgments

HAO LI of VenusTech ADLab

Revision History

• 2021-07-13: Information published.