CVE-2026-108400CriticalRCENetwork
HEVC Video Extensions Remote Code Execution Vulnerability
Assessment
Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.
- Severity
- Critical
- CVSS base score
- 8.8CVSS:3.1/
AV:N/ AC:L/ PR:N/ UI:R/ S:U/ C:H/ I:H/ A:H/ E:U/ RL:O/ RC:C - Impact
- Remote Code Execution
- EPSS, next 30 days
- Not scored yet
- Public exploit code
- No Nuclei template lists it
- Exploitability
- Exploitation Less Likely
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- Microsoft Windows Codecs Library
- Weakness
- CWE-190: Integer Overflow or Wraparound
- Issued by
- Microsoft
- Published
- 13 Oct 2026 · October 2026
- Last revised
- 13 Oct 2026
CVSS 3.1 base metricsRed raises the risk · green lowers it
- Attack vector
- NetworkAV:N
- Attack complexity
- LowAC:L
- Privileges required
- NonePR:N
- User interaction
- RequiredUI:R
- Scope
- UnchangedS:U
- Confidentiality
- HighC:H
- Integrity
- HighI:H
- Availability
- HighA:H
Updates that fix it
0 KBsNo KB listed
MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.
Affected products
Windows24 affected products
- HEVC Video Extensions
- HEVC Video Extensions for Licensed Applications
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 1809 for 32-bit Systems
- HEVC Video Extensions from Device Manufacturer on Windows 10 Version 1809 for x64-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 10 Version 21H2 for ARM64-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 32-bit 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 22H2 for x64-based Systems
- 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 23H2 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 24H2 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 11 Version 25H2 for x64-based Systems
- 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 2019
- HEVC Video Extensions from Device Manufacturer on Windows Server 2019 (Server Core installation)
- HEVC Video Extensions from Device Manufacturer on Windows Server 2022
- HEVC Video Extensions from Device Manufacturer on Windows Server 2022 (Server Core installation)
- HEVC Video Extensions from Device Manufacturer on Windows Server 2025
- HEVC Video Extensions from Device Manufacturer on Windows Server 2025 (Server Core installation)
What changed
First observed 14 Oct 2026No field changes in the recorded history.
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