CVE-2026-36772 Memory corruption in n/a

Medium 6.5 Published Updated

Attackers can cause a Denial of Service on Tenda W3 routers by exploiting a stack overflow in the formwrlSSIDget function.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-36772?

CVE-2026-36772 is a medium-severity memory corruption vulnerability in n/a, published on 9 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204) was discovered to contain a stack overflow in the wl_radio parameter of the formwrlSSIDget function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Weakness: CWE-121

Which versions are affected by CVE-2026-36772?

How do I fix CVE-2026-36772?

No fix has been published for CVE-2026-36772 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-2026-36772 being exploited?

There is no known exploitation of CVE-2026-36772 in the wild and no public exploit code.

Sources

Also known as GHSA-qv79-34fp-fr62.

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