CVE-2025-63463 Memory corruption in n/a

High 7.5 Published 31 Oct 2025 Updated 3 Nov 2025

Attackers can cause a Denial of Service on Totolink LR350 routers via a stack overflow in the wifiOff parameter.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-63463?

CVE-2025-63463 is a high-severity memory corruption vulnerability in n/a, published on 31 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Totolink LR350 v9.3.5u.6369_B20220309 was discovered to contain a stack overflow via the wifiOff parameter in the sub_4232EC function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Weakness: CWE-121

Which versions are affected by CVE-2025-63463?

It affects 1 product.

Products include Totolink Lr350 Firmware.

How do I fix CVE-2025-63463?

No fix has been published for CVE-2025-63463 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-2025-63463 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63463 exists.

Sources

Also known as GHSA-v656-w32r-m2jg.