CVE-2026-11528 Tenda AC18 Web Management getRebootStatus sub_45304 stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Tenda AC18 router's web management interface via the callback argument, potentially leading to code execution or denial of service.

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-2026-11528?

CVE-2026-11528 is a high-severity memory corruption vulnerability in Tenda AC18, published on 8 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Tenda AC18 15.03.05.05. The affected element is the function sub_45304 of the file /goform/getRebootStatus of the component Web Management Interface. The manipulation of the argument callback results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2026-11528?

How do I fix CVE-2026-11528?

No fix has been published for CVE-2026-11528 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-2026-11528 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11528 exists.

Sources

Also known as GHSA-g4hg-4wjv-mfcm.

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