CVE-2026-9531
MediumCVSS 6.3Exploitation Probability (EPSS)
High risk76th percentile - higher than 76% of all known CVEs
Summary
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.
Risk Assessment
A remote attacker can execute arbitrary system commands on the device, potentially leading to full compromise of the router and network.
Recommendation
Immediately disconnect the device from the network and contact the vendor for a firmware update. If none is available, consider replacing the device.
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-2026-9515Medium
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.
- CVE-2026-9511Medium
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.
Original NVD description (English source)
A weakness has been identified in Totolink CA750-PoE 6.2c.510. Impacted is the function setUpgradeUboot of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.