CVE-2026-9511
MediumCVSS 6.3Exploitation Probability (EPSS)
Elevated risk61th percentile - higher than 61% of all known CVEs
Summary
A vulnerability has been identified in Totolink CA750-PoE version 6.2c.510, allowing OS command injection in the setWebWlanIdx function of /cgi-bin/cstecgi.cgi. The attack can be launched remotely by manipulating the webWlanIdx argument. The exploit is publicly available.
Risk Assessment
A remote attacker can execute arbitrary system commands, leading to full device compromise and potential access to the internal network.
Recommendation
Immediately update the device firmware to the latest available version or apply temporary network restrictions to block access to the administrative interface.
Other vulnerabilities in Totolink CA750-PoE
See all- CVE-2026-9534Medium
In the Totolink CA750-PoE router version 6.2c.510, the function setWiFiWpsConfig in the Setting Handler component in file /cgi-bin/cstecgi.cgi is vulnerable to OS command injection via the PIN argument. The attack can be performed remotely, and the exploit is publicly available.
- CVE-2026-9533Medium
In the Totolink CA750-PoE router version 6.2c.510, the function recvUpgradeNewFw in the Setting Handler component in file /cgi-bin/cstecgi.cgi is vulnerable to OS command injection via the fwUrl/magicid arguments. The attack can be performed remotely, and the exploit is publicly available.
- CVE-2026-9532Medium
In the Totolink CA750-PoE router version 6.2c.510, the function setUploadUserData in the Setting Handler component in file /cgi-bin/cstecgi.cgi is vulnerable to OS command injection via the FileName argument. The attack can be performed remotely, and the exploit is publicly available.
- CVE-2026-9531Medium
In the Totolink CA750-PoE router version 6.2c.510, the function setUpgradeUboot in the Setting Handler component in file /cgi-bin/cstecgi.cgi is vulnerable to OS command injection via the FileName argument. The attack can be performed remotely, and the exploit is publicly available.
- CVE-2026-9515Medium
A vulnerability was detected in Totolink CA750-PoE 6.2c.510 allowing OS command injection via the setUnloadUserData function in /cgi-bin/cstecgi.cgi. The attack can be launched remotely and the exploit is publicly available.
- CVE-2026-9514Medium
A vulnerability was detected in Totolink CA750-PoE 6.2c.510 allowing OS command injection via the setNetworkDiag function in /cgi-bin/cstecgi.cgi. The attack can be launched remotely and the exploit is publicly available.
- CVE-2026-9513Medium
A vulnerability has been identified in Totolink CA750-PoE version 6.2c.510, allowing OS command injection in the NTPSyncWithHost function of /cgi-bin/cstecgi.cgi. The attack can be launched remotely by manipulating the host_time argument. The exploit is publicly available.
- CVE-2026-9512Medium
A vulnerability has been discovered in Totolink CA750-PoE version 6.2c.510, allowing OS command injection in the setPasswordCfg function of /cgi-bin/cstecgi.cgi. The attack can be launched remotely by manipulating the admuser/admpass arguments. The exploit is publicly available.
Original NVD description (English source)
A vulnerability was identified in Totolink CA750-PoE 6.2c.510. This affects the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Such manipulation of the argument webWlanIdx leads to os command injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used.