CVE-2026-108400: HEVC Video 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
- Less Likely
- Patch Tuesday
- 2026-Oct
- Released
- 2026-10-13
Description
Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.
FAQ
According to the CVSS metric, the attack vector is network (AV:N) and user interaction is required (UI:R). What is the target context of the remote code execution?
This attack requires a user to open a specially crafted file from the attacker to initiate remote code execution.
Affected Products (24)
Windows
- HEVC Video Extensions from Device Manufacturer on Windows 11 Version 26H1 for ARM64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 11 version 26H1 for x64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows Server 2025
- HEVC Video Extensions from Device Manufacturer on Windows 11 Version 23H2 for ARM64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 11 Version 24H2 for x64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 11 Version 24H2 for ARM64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 11 Version 23H2 for x64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 11 Version 25H2 for x64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 11 Version 25H2 for ARM64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows Server 2025 (Server Core installation)
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 22H2 for 32-bit Systems
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 22H2 for x64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 21H2 for x64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 22H2 for ARM64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 21H2 for ARM64-based Systems
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 21H2 for 32-bit Systems
- HEVC Video Extensions from Device Manufacturer on Windows Server 2022 (Server Core installation)
- HEVC Video Extensions from Device Manufacturer on Windows Server 2022
- HEVC Video Extensions from Device Manufacturer on Windows Server 2019 (Server Core installation)
- HEVC Video Extensions from Device Manufacturer on Windows Server 2019
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 1809 for x64-based Systems
- HEVC Video Extensions for Licensed Applications
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 1809 for 32-bit Systems
- HEVC Video Extensions
Security Updates (3)
Acknowledgments
Anonymous, Taewoo (Tae_ω02)
Revision History
- 2026-10-13: Information published.