CVE-2025-6114 D-Link DIR-619L form_portforwarding stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the port forwarding interface of unsupported D-Link routers to execute arbitrary code.

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-2025-6114?

CVE-2025-6114 is a high-severity memory corruption vulnerability in Dlink Dir-619l Firmware, published on 16 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 D-Link DIR-619L 2.06B01 and classified as critical. Affected by this vulnerability is the function form_portforwarding of the file /goform/form_portforwarding. The manipulation of the argument ingress_name_%d/sched_name_%d/name_%d leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-6114?

It affects 1 product.

Products include Dlink Dir-619l Firmware.

How do I fix CVE-2025-6114?

No fix has been published for CVE-2025-6114 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-2025-6114 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6114 exists.

All Dlink Dir-619l Firmware vulnerabilities

Sources

Also known as GHSA-mgf3-wjxv-h89q.

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