CVE-2025-3993 TOTOLINK N150RT formWsc buffer overflow
Remote attackers can exploit a buffer overflow in the formWsc handler to execute arbitrary code on TOTOLINK N150RT routers.
- 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-2025-3993?
CVE-2025-3993 is a high-severity memory corruption vulnerability in TOTOLINK N150RT, published on 28 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in TOTOLINK N150RT 3.4.0-B20190525 and classified as critical. This issue affects some unknown processing of the file /boafrm/formWsc. The manipulation of the argument submit-url leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-3993?
It affects 1 product.
Products include Totolink N150rt Firmware.
How do I fix CVE-2025-3993?
No fix has been published for CVE-2025-3993 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-2025-3993 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3993 exists.
Other vulnerabilities in TOTOLINK N150RT
Sources
Also known as GHSA-4jwx-pg4r-8w69.