CVE-2022-44677: Windows Projected File System 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: 2022-Dec
Released: 2022-12-13
EPSS Score: 1.18% (percentile: 78.8%)

FAQ

According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability? Any authenticated user could trigger this vulnerability. It does not require admin or other elevated privileges. What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Affected Products (22)

Windows

Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows 10 Version 21H1 for x64-based Systems
Windows 10 Version 21H1 for ARM64-based Systems
Windows 10 Version 21H1 for 32-bit Systems
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows 10 Version 20H2 for 32-bit Systems
Windows 10 Version 20H2 for ARM64-based Systems
Windows 11 version 21H2 for x64-based Systems
Windows 11 version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for 32-bit Systems
Windows 10 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 10 Version 22H2 for 32-bit Systems
Windows 10 Version 22H2 for ARM64-based Systems

Security Updates (5)

Acknowledgments

<a href="https://twitter.com/keyz3r0">k0shl</a> with <a href="https://www.cyberkl.com/">Kunlun Lab</a>

Revision History

2022-12-13: Information published.