CVE-2026-7123 Totolink A8000RU CGI cstecgi.cgi setIptvCfg os command injection
Remote attackers can execute arbitrary OS commands on Totolink A8000RU routers via the setIptvCfg CGI parameter.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7123?
CVE-2026-7123 is a critical command injection vulnerability in Totolink A8000RU, published on 27 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument setIptvCfg results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.
Which versions are affected by CVE-2026-7123?
How do I fix CVE-2026-7123?
No fix has been published for CVE-2026-7123 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-7123 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7123 exists.
Sources
Also known as GHSA-975m-wwjm-9r48.