CVE-2023-27361

NETGEAR RAX30 rex_cgi JSON Parsing 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 required to exploit this vulnerability. The specific flaw exists within the handling of JSON data. 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-19355.

• CWE-121
• CWE-787

• https://kb.netgear.com/000065625/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-the-RAX30-PSV-2022-0302Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-23-495/Third Party Advisory
• https://kb.netgear.com/000065625/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-the-RAX30-PSV-2022-0302Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-23-495/Third Party Advisory

Published

May 3, 2024

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2023-27356NETGEAR RAX30 logCtrl Command Injection Remote Code Executio…8
• CVE-2023-27357NETGEAR RAX30 GetInfo Missing Authentication Information Dis…6.5
• CVE-2023-27358NETGEAR RAX30 SOAP Request SQL Injection Remote Code Executi…8.8
• CVE-2023-27359TP-Link AX1800 hotplugd Firewall Rule Race Condition Vulnera…8.1
• CVE-2023-2736The Groundhogg plugin for WordPress is vulnerable to Cross-S…8
• CVE-2023-27360NETGEAR RAX30 lighttpd Misconfiguration Remote Code Executio…8.8
• CVE-2023-273623CX Uncontrolled Search Path Local Privilege Escalation Vuln…7.8
• CVE-2023-27363Foxit PDF Reader exportXFAData Exposed Dangerous Method Remo…7.8
• CVE-2023-27364Foxit PDF Editor XLS File Parsing Exposed Dangerous Method R…7.8
• CVE-2023-27365Foxit PDF Editor DOC File Parsing Exposed Dangerous Method R…7.8
• CVE-2023-27366Foxit PDF Reader Doc Object Use-After-Free Remote Code Execu…7.8
• CVE-2023-27367NETGEAR RAX30 libcms_cli Command Injection Remote Code Execu…8