Use-after-free in Microsoft Windows and Windows Server - CVE-2024-38141

Vulnerability identifier: #VU95944

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-2024-38141

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Windows Ancillary Function Driver for WinSock. A local user can gain elevated privileges on the target system.

Microsoft Windows
Windows Server

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.4780, 10 22H2 10.0.19045.4529, 10 22H2 10.0.19045.4780, 10 1507 10.0.10240.20751, 10 1607 10.0.14393.7259, 10 1809 10.0.17763.6189, 11 21H2 10.0.22000.3147, 11 22H2 10.0.22621.4037, 11 23H2 10.0.22631.4037
Windows Server - addressed in versions 2012 R2 6.3.9600.22134, 2012 6.2.9200.25031, 2016 10.0.14393.7259, 2022 10.0.20348.2655

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38141

• Privilege escalation in Microsoft Windows Ancillary Function Driver for WinSock