CVE-2025-15189 D-Link DWR-M920 formDefRoute sub_464794 buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the D-Link DWR-M920 router via the submit-url parameter, potentially leading to 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-2025-15189?

CVE-2025-15189 is a high-severity memory corruption vulnerability in D-Link DWR-M920, published on 29 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was identified in D-Link DWR-M920 up to 1.1.50. This issue affects the function sub_464794 of the file /boafrm/formDefRoute. The manipulation of the argument submit-url leads to buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-15189?

It affects 1 product.

Products include Dlink Dwr-M920 Firmware.

How do I fix CVE-2025-15189?

No fix has been published for CVE-2025-15189 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-2025-15189 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15189 exists.

Sources

Also known as GHSA-p244-346v-84c5.

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