CVE-2026-5679
MediumCVSS 5.5Exploitation Probability (EPSS)
High risk75th percentile - higher than 75% of all known CVEs
Summary
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.
Risk Assessment
A remote attacker can gain unauthorized access to the device and execute arbitrary commands, potentially leading to full compromise of the router.
Recommendation
Immediately update the device firmware to the latest version and disable unnecessary remote services.
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-2023-31729Critical
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.
Original NVD description (English source)
A security vulnerability has been detected in Totolink A3300R 17.0.0cu.557_B20221024. The impacted element is the function vsetTr069Cfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument stun_pass leads to os command injection. The exploit has been disclosed publicly and may be used.