CVE-2023-40478

Name of the Vulnerable Software and Affected Versions NETGEAR RAX30 (affected versions not specified)

Description The issue is related to a stack-based buffer overflow in the telnet CLI service of NETGEAR RAX30 routers, allowing network-adjacent attackers to execute arbitrary code on affected installations. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the telnet CLI service, which listens on TCP port 23, and results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.