CVE-2026-9478 Totolink A8000RU Web Management cstecgi.cgi setParentalRules os command injection
Remote attackers can execute arbitrary OS commands via the setParentalRules function in the Totolink A8000RU web management interface.
- 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-2026-9478?
CVE-2026-9478 is a critical command injection vulnerability in Totolink A8000RU, published on 25 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setParentalRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.
Which versions are affected by CVE-2026-9478?
How do I fix CVE-2026-9478?
No fix has been published for CVE-2026-9478 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-2026-9478 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9478 exists.
Sources
Also known as GHSA-prcq-7777-rj56.