CVE-2025-25891 Memory corruption in n/a

Medium 5.7 Published Updated

Attackers can cause a Denial of Service on D-Link DSL-3782 routers by sending crafted packets with malicious parameters.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-25891?

CVE-2025-25891 is a medium-severity memory corruption vulnerability in n/a, published on 18 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A buffer overflow vulnerability was discovered in D-Link DSL-3782 v1.01, triggered by the destination, netmask and gateway parameters. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.

Weakness: CWE-121

Which versions are affected by CVE-2025-25891?

It affects 1 product.

Products include Dlink Dsl-3782 Firmware.

How do I fix CVE-2025-25891?

No fix has been published for CVE-2025-25891 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-2025-25891 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-25891 exists.

Sources

Also known as GHSA-4w46-7mrq-64vx.

Is CVE-2025-25891 in your software?

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