CVE-2023-36427: Windows Hyper-V Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7)

CVSS Vector

CVSS:3.1/AV:L/AC:H/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

8.65% (percentile: 92.4%)

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. According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Real-world exploitability of this attack is very low. Successful exploitation of this vulnerability requires an attacker to obtain 12th+ generation hardware to trigger the vulnerability. In addition, the attacker can only populate data at the beginning of a page, and its contents are mostly uncontrollable.

Detection & Weaponization (1 sources)

Maturity: Exploit

• GitHub PoC: 1 repositories

Affected Products (11)

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 10 Version 21H2 for x64-based Systems
• Windows 11 Version 22H2 for x64-based Systems
• Windows 10 Version 22H2 for x64-based Systems
• Windows 11 Version 23H2 for x64-based Systems
• Windows Server 2022, 23H2 Edition (Server Core installation)

Security Updates (7)

• 5032196
• 5032198
• 5032304
• 5032192
• 5032189
• 5032190
• 5032202

Acknowledgments

<a href="https://twitter.com/standa_t">Satoshi Tanda</a> with <a href="https://tandasat.github.io/">System Programming Lab</a>

Revision History

• 2023-11-14: Information published.