CVE-2026-9405
CriticalCVSS 9.8Exploitation Probability (EPSS)
High risk75th percentile - higher than 75% of all known CVEs
Summary
A security flaw was discovered in the web management interface of Totolink A8000RU, leading to OS command injection. It affects the setGameSpeedCfg function in /cgi-bin/cstecgi.cgi, where the enable argument is mishandled. The attack can be launched remotely and the exploit is public.
Risk Assessment
A remote attacker can alter game acceleration settings, potentially affecting network performance and enabling further attacks.
Recommendation
Immediately update the router firmware or temporarily disable remote access to the management interface.
Other vulnerabilities in Totolink A8000RU
See all- CVE-2026-9478Critical
In the Totolink A8000RU web management interface, the setParentalRules function is vulnerable to OS command injection via the enable argument.
- CVE-2026-9477Critical
In the Totolink A8000RU web management interface, the setAccessDeviceCfg function is vulnerable to OS command injection via the mac argument.
- CVE-2026-9476Critical
In the Totolink A8000RU web management interface, the setPasswordCfg function is vulnerable to OS command injection via the admpass argument.
- CVE-2026-9475Critical
In the Totolink A8000RU web management interface, the setIpQosRules function is vulnerable to OS command injection via the Comment argument.
- CVE-2026-9458Critical
A vulnerability in the Totolink A8000RU router version 7.1cu.643_b20200521 allows a remote attacker to inject OS commands via the enabled argument in the setWanCfg function of the web management interface.
- CVE-2026-9457Critical
A vulnerability in the Totolink A8000RU router version 7.1cu.643_b20200521 allows a remote attacker to inject OS commands via the FileName argument in the UploadFirmwareFile function of the web management interface.
- CVE-2026-9456Critical
In the Totolink A8000RU web management interface, the setOpenVpnCfg function is vulnerable to OS command injection via the enabled argument.
- CVE-2026-9455Critical
In the Totolink A8000RU web management interface, the UploadOpenVpnCert function is vulnerable to OS command injection via the FileName argument.
- CVE-2026-9454Critical
In the Totolink A8000RU web management interface, the setOpenVpnCertGenerationCfg function is vulnerable to OS command injection via the servername argument.
- CVE-2026-9436Critical
A vulnerability has been found in the Totolink A8000RU router version 7.1cu.643_b20200521, allowing OS command injection via the setL2tpServerCfg function in /cgi-bin/cstecgi.cgi by manipulating the enable argument. The attack can be executed remotely, and an exploit has been published.
Original NVD description (English source)
A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setGameSpeedCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument enable results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS