CVE-2025-12210 Tenda O3 AdvSetLanip GetValue stack-based overflow
A remote stack-based buffer overflow in the Tenda O3 router allows attackers to execute arbitrary code or cause a denial of service via crafted network requests.
- 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-2025-12210?
CVE-2025-12210 is a high-severity memory corruption vulnerability in Tenda O3, published on 27 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in Tenda O3 1.0.0.10(2478). Affected by this vulnerability is the function SetValue/GetValue of the file /goform/AdvSetLanip. The manipulation of the argument lanIp leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Which versions are affected by CVE-2025-12210?
It affects 1 product.
Products include Tenda O3 Firmware1.0.0.10\(2478\).
How do I fix CVE-2025-12210?
No fix has been published for CVE-2025-12210 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-2025-12210 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-12210 exists.
Other vulnerabilities in Tenda O3
- CVE-2025-12209 Tenda O3 setDhcpConfig GetValue stack-based overflow
- CVE-2025-12211 Tenda O3 setDmzInfo GetValue stack-based overflow
- CVE-2025-12212 Tenda O3 setNetworkService GetValue stack-based overflow
- CVE-2025-12213 Tenda O3 setVlanConfig GetValue stack-based overflow
- CVE-2025-12214 Tenda O3 sysAutoReboot GetValue stack-based overflow
Sources
Also known as GHSA-4m9p-ff32-46w8.