CVE-2025-50646 Memory corruption in n/a

High 7.5 Published 8 Apr 2026 Updated 22 Apr 2026

A buffer overflow in the D-Link DI-8003 router allows attackers to execute arbitrary code or cause denial of service via the QoS endpoint.

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-2025-50646?

CVE-2025-50646 is a high-severity memory corruption vulnerability in n/a, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to insufficient input validation on the name parameter in the /qos_type_asp.asp endpoint.

Weakness: CWE-120

Which versions are affected by CVE-2025-50646?

It affects 1 product.

Products include Dlink Di-8003 Firmware.

How do I fix CVE-2025-50646?

No fix has been published for CVE-2025-50646 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-2025-50646 being exploited?

There is no known exploitation of CVE-2025-50646 in the wild and no public exploit code.

Sources

Also known as GHSA-h436-c99c-c8r5.