CVE-2023-36408: Windows Hyper-V Elevation of Privilege Vulnerability

Overview

Severity: High (CVSS 7.8)
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category: Elevation of Privilege
Exploit Status: Not Exploited
Exploitation Likelihood: Less Likely
Patch Tuesday: 2023-Nov
Released: 2023-11-14
EPSS Score: 0.13% (percentile: 32.7%)

FAQ

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges. How could an attacker exploit this vulnerability? This vulnerability would require an unauthenticated attacker on a guest VM to send specially crafted file operation requests to the VM's hardware resources which could result in remote code execution on the host server.

Affected Products (17)

Windows

Windows 10 Version 1809 for x64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows 11 version 21H2 for x64-based Systems
Windows 11 version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 11 Version 22H2 for ARM64-based Systems
Windows 11 Version 22H2 for x64-based Systems
Windows 10 Version 22H2 for x64-based Systems
Windows 11 Version 23H2 for ARM64-based Systems
Windows 11 Version 23H2 for x64-based Systems
Windows Server 2022, 23H2 Edition (Server Core installation)
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016
Windows Server 2016 (Server Core installation)

Security Updates (8)

Acknowledgments

<a href="https://github.com/cbwang505">ChengBin Wang</a> with <a href="https://www.guolisec.com/">ZheJiang Guoli Security Technology</a> and <a href="https://linfeng/">linfeng</a> with <a href="https://www.netciip.com/">Hebei Huace</a> and <a href="https://linfeng/">linfeng</a> with <a href="https://www.netciip.com/">Hebei Huace</a>

Revision History

2023-11-14: Information published.