CVE-2026-10158 TRENDnet TEW-432BRP formPortFw stack-based overflow
Remote attackers can execute arbitrary code via a stack-based buffer overflow in the formPortFw function of this end-of-life 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-2026-10158?
CVE-2026-10158 is a high-severity memory corruption vulnerability in TRENDnet TEW-432BRP, published on 31 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security flaw has been discovered in TRENDnet TEW-432BRP 3.10B20. Affected is the function formPortFw of the file /goform/formPortFw. The manipulation of the argument server_name results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. 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-2026-10158?
How do I fix CVE-2026-10158?
No fix has been published for CVE-2026-10158 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-2026-10158 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10158 exists.
Sources
Also known as GHSA-cmfx-vxp8-w2v6.