CVE-2023-34285

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-121CWE-787

Affected software

VendorProductVersions
NETGEARRAX301.0.9.92_1
netgearrax30-

References

Timeline

Published
May 3, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2023-34285: High severity, CVSS 8.8 | Vulnix