CVE-2026-5547 Tenda AC10 httpd formAddMacfilterRule os command injection

Medium 5.3 Published 5 Apr 2026 Updated 6 Apr 2026

Remote attackers can execute arbitrary OS commands on Tenda AC10 routers via the formAddMacfilterRule function in httpd.

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-2026-5547?

CVE-2026-5547 is a medium-severity command injection vulnerability in Tenda Ac10 Firmware, published on 5 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been found in Tenda AC10 16.03.10.10_multi_TDE01. Affected is the function formAddMacfilterRule of the file /bin/httpd. Such manipulation leads to os command injection. It is possible to launch the attack remotely. Multiple endpoints might be affected.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-5547?

It affects 1 product.

Products include Tenda Ac10 Firmware.

How do I fix CVE-2026-5547?

No fix has been published for CVE-2026-5547 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-2026-5547 being exploited?

There is no known exploitation of CVE-2026-5547 in the wild and no public exploit code.

All Tenda Ac10 Firmware vulnerabilities

Sources

Also known as GHSA-5xr7-9jmx-g4x4.