CVE-2025-29217 Memory corruption in n/a

Medium 6.5 Published 20 Mar 2025 Updated 5 Jul 2026

Attackers can cause a Denial of Service on Tenda W18E routers by sending a crafted POST request with a long wifiSSID parameter.

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-2025-29217?

CVE-2025-29217 is a medium-severity memory corruption vulnerability in n/a, published on 20 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Tenda W18E v2.0 v16.01.0.11 was discovered to contain a stack overflow in the wifiSSID parameter at /goform/setModules. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Weakness: CWE-121

Which versions are affected by CVE-2025-29217?

It affects 1 product.

Products include Tenda W18e Firmware.

How do I fix CVE-2025-29217?

No fix has been published for CVE-2025-29217 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-2025-29217 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-29217 exists.

Sources

Also known as GHSA-xxvw-6qqh-qrjj.