CVE-2025-15234 Tenda M3 setInternetLanInfo formSetRemoteInternetLanInfo heap-based overflow
A heap-based buffer overflow in the Tenda M3 router allows remote attackers to execute arbitrary code or cause a denial of service via crafted network parameters.
- 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-2025-15234?
CVE-2025-15234 is a high-severity memory corruption vulnerability in Tenda M3, published on 30 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in Tenda M3 1.0.0.13(4903). Impacted is the function formSetRemoteInternetLanInfo of the file /goform/setInternetLanInfo. This manipulation of the argument portIp/portMask/portGateWay/portDns/portSecDns causes heap-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.
Which versions are affected by CVE-2025-15234?
It affects 1 product.
Products include Tenda M3 Firmware.
How do I fix CVE-2025-15234?
No fix has been published for CVE-2025-15234 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-2025-15234 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15234 exists.
Other vulnerabilities in Tenda M3
Sources
Also known as GHSA-p36g-m864-jrh5.