CVE-2026-2881 D-Link DWR-M960 Advanced Firewall Configuration Endpoint formFirewallAdv sub_425FF8 stack-based overflow

High 8.7 Published 21 Feb 2026 Updated 23 Feb 2026

Remote attackers can trigger a stack-based buffer overflow in the D-Link DWR-M960 firewall configuration endpoint, 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-2026-2881?

CVE-2026-2881 is a high-severity memory corruption vulnerability in D-Link DWR-M960, published on 21 Feb 2026. 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 DWR-M960 1.01.07. This vulnerability affects the function sub_425FF8 of the file /boafrm/formFirewallAdv of the component Advanced Firewall Configuration Endpoint. Such manipulation of the argument submit-url leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2026-2881?

It affects 1 product.

Products include Dlink Dwr-M960 Firmware.

How do I fix CVE-2026-2881?

No fix has been published for CVE-2026-2881 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-2026-2881 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2881 exists.

Sources

Also known as GHSA-q2r4-399v-qv3c.