Use-after-free in Microsoft Windows and Windows Server - CVE-2024-38140

Vulnerability identifier: #VU95981

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-38140

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Windows Reliable Multicast Transport Driver (RMCAST). A remote attacker can send specially crafted packets and execute arbitrary code 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 2008 R2 6.1.7601.27277, 2008 6.0.6003.22825, 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-2024-38140

• Remote code execution in Microsoft Windows Reliable Multicast Transport Driver (RMCAST)