Main Vulnerability Database Vulnerabilities #VU72170

Buffer overflow in Microsoft Windows and Windows Server - CVE-2023-21823

Published: February 14, 2023 / Updated: June 28, 2024

Vulnerability identifier: #VU72170

CSH Severity: High

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-2023-21823

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

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

The vulnerability exists due to a boundary error within the Windows Graphics Component. A local user can trigger memory corruption and execute arbitrary code with SYSTEM privileges.

Note, the vulnerability is being actively exploited in the wild.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2023-21823

Install updates from vendor's website.

Links to Public Exploits and PoC-codes

Exploit #10127 - CVE-2023-21823 ( CVE-2023-21823 PoC) (June 28, 2024)

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21823

Related Security Bulletins

Privilege escalation in Microsoft Windows Graphics Component