CVE-2026-9429 Tenda F1202 WrlExtraSet formWrlExtraSet stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda F1202 router via the delno argument, potentially leading to code execution or service disruption.
- 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-2026-9429?
CVE-2026-9429 is a high-severity memory corruption vulnerability in Tenda F1202, published on 25 May 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 F1202 1.2.0.20(408). Affected by this vulnerability is the function formWrlExtraSet of the file /goform/WrlExtraSet. Performing a manipulation of the argument delno results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used.
Which versions are affected by CVE-2026-9429?
How do I fix CVE-2026-9429?
No fix has been published for CVE-2026-9429 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-2026-9429 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9429 exists.
Sources
Also known as GHSA-v3rr-p395-8h3q.