CVE-2023-31729
CriticalCVSS 9.8Exploitation Probability (EPSS)
Elevated risk69th percentile - higher than 69% of all known CVEs
Summary
TOTOLINK A3300R router firmware v17.0.0cu.557 is vulnerable to Command Injection via the /cgi-bin/cstecgi.cgi CGI script. An attacker can remotely execute arbitrary system commands without authentication.
Risk Assessment
The risk for the organization is the potential for an unauthenticated attacker to gain full control over the router, leading to network confidentiality and integrity breaches.
Recommendation
It is recommended to immediately update the TOTOLINK A3300R firmware to the latest available version and restrict management interface access to trusted networks only.
Other vulnerabilities in TOTOLINK A3300R
See all- CVE-2023-37173Critical
The TOTOLINK A3300R device in version V17.0.0cu.557_B20221024 was found to contain a command injection vulnerability via the command parameter in the setTracerouteCfg function.
- CVE-2023-37172Critical
A command injection vulnerability was discovered in the TOTOLINK A3300R device version V17.0.0cu.557_B20221024 via the ip parameter in the setDiagnosisCfg function.
- CVE-2023-37171Critical
The TOTOLINK A3300R device version V17.0.0cu.557_B20221024 was found to contain a command injection vulnerability via the admuser parameter in the setPasswordCfg function.
- CVE-2023-37170Critical
The TOTOLINK A3300R device version V17.0.0cu.557_B20221024 has been found to contain an unauthenticated remote code execution (RCE) vulnerability via the lang parameter in the setLanguageCfg function.
- CVE-2026-5679Medium
A vulnerability was detected in Totolink A3300R 17.0.0cu.557_B20221024 allowing OS command injection via the vsetTr069Cfg function in /cgi-bin/cstecgi.cgi. The attack can be launched remotely and the exploit is publicly available.
Original NVD description (English source)
TOTOLINK A3300R v17.0.0cu.557 is vulnerable to Command Injection via /cgi-bin/cstecgi.cgi.

