CVE-2023-36424highunder attackCWE-125

CVE-2023-36424: high-severity vulnerability in Microsoft Windows 10 Version 1507

Windows Common Log File System Driver Elevation of Privilege Vulnerability

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81Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA, has an official Brazilian government alert and has a public proof of concept.

ssvc Actcvss 7.8epss 12%
from disclosure to weapon128 days
Published on NVDNov 14
1st PoC+128d
CISA KEV+881d
Official alert in Brazil

Brazil's federal government published an alert, recommendation or bulletin that cites this vulnerability.

  • CTIR Gov · ALERTA 30/2026Vulnerabilidade de leitura fora dos limites no Windowsread on gov.br ↗
Source: CTIR Gov (GSI) and CISC Gov.br, under the CC BY-ND 3.0 license.
Action required by CISAfederal deadline: 2026-04-27

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

In short

A flaw in Windows' file system driver allows an attacker with limited local access to gain higher privileges on the system, potentially taking full control. This matters because it bypasses security restrictions designed to keep different user accounts separated.

Technical detail

CWE-125 (Out-of-bounds Read) in the Common Log File System Driver allows local privilege escalation through memory corruption. Attacker requires local code execution capability; successful exploitation grants SYSTEM-level privileges, compromising system integrity and confidentiality.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Windows Common Log File System Driver Elevation of Privilege Vulnerability
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
Affected products
Microsoft · Windows 10 Version 1507Microsoft · Windows 10 Version 1607Microsoft · Windows 10 Version 1809Microsoft · Windows 10 Version 21H2Microsoft · Windows 10 Version 22H2Microsoft · Windows 11 version 21H2Microsoft · Windows 11 version 22H2Microsoft · Windows 11 version 22H3Microsoft · Windows 11 Version 23H2Microsoft · Windows Server 2008 R2 Service Pack 1Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft · Windows Server 2008 Service Pack 2Microsoft · Windows Server 2008 Service Pack 2Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft · Windows Server 2012Microsoft · Windows Server 2012 R2Microsoft · Windows Server 2012 R2 (Server Core installation)Microsoft · Windows Server 2012 (Server Core installation)Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)Microsoft · Windows Server 2022Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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