CVE-2026-78063 Tenda CH22 editFileName formeditFileName command injection

Medium 5.3 Published Updated

Remote attackers can execute arbitrary commands on Tenda CH22 routers via the editFileName form parameter, requiring immediate attention from network administrators.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-78063?

CVE-2026-78063 is a medium-severity command injection vulnerability in Tenda CH22, published on 23 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security flaw has been discovered in Tenda CH22 1.0.0.1. The impacted element is the function formeditFileName of the file /goform/editFileName. The manipulation of the argument editNameMit results in command injection. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-78063?

How do I fix CVE-2026-78063?

No fix has been published for CVE-2026-78063 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-2026-78063 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78063 exists.

Sources

Also known as GHSA-x5qw-fmv8-fhx9.

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