CVE-2025-3991 TOTOLINK N150RT formWdsEncrypt buffer overflow
Remote attackers can trigger a buffer overflow in the TOTOLINK N150RT router via the formWdsEncrypt endpoint, potentially leading to arbitrary code execution.
- 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-2025-3991?
CVE-2025-3991 is a high-severity memory corruption vulnerability in TOTOLINK N150RT, published on 27 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, was found in TOTOLINK N150RT 3.4.0-B20190525. This affects an unknown part of the file /boafrm/formWdsEncrypt. The manipulation of the argument submit-url leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-3991?
It affects 1 product.
Products include Totolink N150rt Firmware.
How do I fix CVE-2025-3991?
No fix has been published for CVE-2025-3991 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-2025-3991 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3991 exists.
Other vulnerabilities in TOTOLINK N150RT
Sources
Also known as GHSA-53vj-jg5c-244w.