CVE-2026-10120 TRENDnet TEW-432BRP formSetFirewallRule stack-based overflow
Remote attackers can execute arbitrary code via a stack-based buffer overflow in the firewall rule configuration of an unsupported TRENDnet router.
- 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-2026-10120?
CVE-2026-10120 is a high-severity memory corruption vulnerability in TRENDnet TEW-432BRP, published on 30 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in TRENDnet TEW-432BRP 3.10B20. The affected element is the function formSetFirewallRule of the file /goform/formSetFirewallRule. The manipulation of the argument firewall_name results in stack-based buffer overflow. The attack can be executed remotely. The exploit is now public and may be used. The vendor explains: "This product has been EOL for 15 years (since 2009). As the item has been EOL for such a long time, we are not able to replicate or fix any vulnerabilities." This vulnerability only affects products that are no longer supported by the maintainer.
Which versions are affected by CVE-2026-10120?
How do I fix CVE-2026-10120?
No fix has been published for CVE-2026-10120 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-2026-10120 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10120 exists.
Sources
Also known as GHSA-mm7q-pjr7-mv58.