Use-after-free in Microsoft Windows and Windows Server - CVE-2023-38166
Published: October 10, 2023
Vulnerability identifier: #VU81759
CSH Severity: Critical
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-38166
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Layer 2 Tunneling protocol (L2TP) implementation in Routing and Remote Access Service (RRAS) server. A remote attacker can send specially crafted packets to the system to trigger a race condition and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2023-38166
Install updates from vendor's website.