Main Vulnerability Database Vulnerabilities #VU70897

Permissions, Privileges, and Access Controls in Microsoft Windows and Windows Server - CVE-2023-21773

Published: January 10, 2023 / Updated: February 26, 2023

Vulnerability identifier: #VU70897

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-21773

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Windows Kernel, which leads to security restrictions bypass and privilege escalation.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2023-21773

Install updates from vendor's website.

Links to Public Exploits and PoC-codes

Exploit #8868 - PoC (Proof-of-Concept Exploits Based On Known CVE's) (February 26, 2023)

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21773

Related Security Bulletins

Multiple vulnerabilities in Microsoft Windows Kernel