CVE-2023-34285 NETGEAR RAX30 cmsCli_authenticate Stack-based Buffer Overflow Remote Code Execution Vulnerability
Network-adjacent attackers can execute arbitrary code as root on NETGEAR RAX30 routers via a stack-based buffer overflow in the telnetd service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-34285?
CVE-2023-34285 is a high-severity memory corruption vulnerability in NETGEAR RAX30, published on 3 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NETGEAR RAX30 cmsCli_authenticate Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within a shared library used by the telnetd service, which listens on TCP port 23 by default. The issue 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. Was ZDI-CAN-19918.
Which versions are affected by CVE-2023-34285?
It affects 1 product.
Products include Netgear Rax30 Firmware.
How do I fix CVE-2023-34285?
No fix has been published for CVE-2023-34285 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-34285 being exploited?
There is no known exploitation of CVE-2023-34285 in the wild and no public exploit code.
Other vulnerabilities in NETGEAR RAX30
- CVE-2025-44658 File upload in n/a
- CVE-2023-1327 Auth bypass in Netgear RAX30 (AX2400)
- CVE-2023-27852 Memory corruption in NETGEAR Nighthawk WiFi6 Router
- CVE-2023-27853 Other in NETGEAR Nighthawk WiFi6 Router
- CVE-2023-51635 NETGEAR RAX30 fing_dil Stack-based Buffer Overflow Remote Code Execution Vulnerability
Sources
Also known as GHSA-68jf-3wjw-q37v.