CVE-2026-13582 Edimax EW-7478APC POST Request formUSBAccount buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the Edimax EW-7478APC via crafted POST requests, potentially leading to code execution.

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-2026-13582?

CVE-2026-13582 is a high-severity memory corruption vulnerability in Edimax EW-7478APC, published on 29 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw has been found in Edimax EW-7478APC 1.04. This issue affects the function formUSBAccount of the file /goform/formUSBAccount of the component POST Request Handler. This manipulation of the argument UserName/Password causes buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-13582?

How do I fix CVE-2026-13582?

No fix has been published for CVE-2026-13582 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-13582 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13582 exists.

Sources

Also known as GHSA-9gmf-7v9v-p9h8.

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