CVE-2026-15481 Trendnet TEW-635BRM IPoA WAN Connection Setup rc ipoa_test command injection

High 8.7 Published Updated

Remote attackers can execute arbitrary commands via the IPoA WAN setup interface in Trendnet TEW-635BRM routers, which are end-of-life devices.

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-2026-15481?

CVE-2026-15481 is a high-severity command injection vulnerability in Trendnet TEW-635BRM, published on 12 Jul 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 Trendnet TEW-635BRM up to 1.00.03. This vulnerability affects the function ipoa_test of the file /sbin/rc of the component IPoA WAN Connection Setup. Performing a manipulation of the argument ipoa_ipaddr results in command injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor explains: "We are unable to confirm if the vulnerability exists. This item has been EOL since 2011. We will make an official announcement of possible vulnerabilities, and recommend users to switch devices." This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-15481?

How do I fix CVE-2026-15481?

No fix has been published for CVE-2026-15481 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-2026-15481 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15481 exists.

Sources

Also known as GHSA-wq7g-mf6c-75vq.

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