CVE-2026-81352: Web Media Extensions Remote Code Execution Vulnerability
Overview
- Severity
- High (CVSS 8.8)
- CVSS Vector
- CVSS:3.1/AV:N/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
- Unlikely
- Patch Tuesday
- 2026-Sep
- Released
- 2026-09-08
Description
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.
Affected Products (14)
Windows
- Web Media Extensions on Windows 10 Version 21H2 for 32-bit Systems
- Web Media Extensions on Windows 10 Version 21H2 for ARM64-based Systems
- Web Media Extensions on Windows 10 Version 21H2 for x64-based Systems
- Web Media Extensions on Windows 10 Version 22H2 for x64-based Systems
- Web Media Extensions on Windows 10 Version 22H2 for ARM64-based Systems
- Web Media Extensions on Windows 10 Version 22H2 for 32-bit Systems
- Web Media Extensions on Windows 11 Version 25H2 for ARM64-based Systems
- Web Media Extensions on Windows 11 Version 25H2 for x64-based Systems
- Web Media Extensions on Windows 11 Version 23H2 for ARM64-based Systems
- Web Media Extensions on Windows 11 Version 23H2 for x64-based Systems
- Web Media Extensions on Windows 11 Version 24H2 for ARM64-based Systems
- Web Media Extensions on Windows 11 Version 24H2 for x64-based Systems
- Web Media Extensions on Windows 11 version 26H1 for x64-based Systems
- Web Media Extensions on Windows 11 Version 26H1 for ARM64-based Systems
Security Updates (1)
Acknowledgments
Anonymous
Revision History
- 2026-09-08: Information published.