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Vulnerability DatabaseCVE-2023-36731

CVE-2023-36731: 
vulnerability analysis and mitigation

Overview

Win32k Elevation of Privilege Vulnerability (CVE-2023-36731) is a security flaw that was initially disclosed on June 26, 2023. The vulnerability affects various versions of Microsoft Windows operating systems, including Windows 10, Windows 11, and Windows Server editions (MITRE CVE).

Technical details

The vulnerability has been assigned a CVSS v3.1 Base Score of 7.8 (HIGH) with the following vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Microsoft has classified this as a CWE-20 (Improper Input Validation) vulnerability (NVD).

Impact

This elevation of privilege vulnerability in Win32k could allow an attacker to gain higher privileges on affected systems, potentially leading to complete system compromise with high confidentiality, integrity, and availability impacts (Rapid7).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability across multiple affected versions. The patches are available through various KB updates including KB5031377 for Windows 10 1507, KB5031362 for Windows 10 1607, KB5031361 for Windows 10 1809, KB5031356 for Windows 10 21H2/22H2, KB5031358 for Windows 11 21H2, and KB5031354 for Windows 11 22H2 (Rapid7).

Additional resources

Source: This report was generated using AI

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