CVE-2025-5734 TOTOLINK X15 HTTP POST Request formWlanRedirect buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the TOTOLINK X15 router via a crafted HTTP POST request, potentially leading to code execution or service disruption.

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-2025-5734?

CVE-2025-5734 is a high-severity memory corruption vulnerability in TOTOLINK X15, published on 6 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been found in TOTOLINK X15 1.0.0-B20230714.1105 and classified as critical. This vulnerability affects unknown code of the file /boafrm/formWlanRedirect of the component HTTP POST Request Handler. The manipulation of the argument redirect-url leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-5734?

It affects 1 product.

Products include Totolink X15 Firmware.

How do I fix CVE-2025-5734?

No fix has been published for CVE-2025-5734 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-2025-5734 being exploited?

There is no known exploitation of CVE-2025-5734 in the wild and no public exploit code.

Sources

Also known as GHSA-4gcp-2h7q-gg8v.

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