CVE-2026-7067 D-Link DIR-822 udhcpd DHCP Service dhcpd.c system command injection

Medium 6.9 Published 26 Apr 2026 Updated 27 Apr 2026

Remote attackers can execute arbitrary system commands on unsupported D-Link DIR-822 routers via a flaw in the udhcpd DHCP service.

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-2026-7067?

CVE-2026-7067 is a medium-severity command injection vulnerability in D-Link DIR-822, published on 26 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was determined in D-Link DIR-822 A_101. The impacted element is the function system of the file /udhcpcd/dhcpd.c of the component udhcpd DHCP Service. This manipulation of the argument Hostname causes command injection. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-7067?

It affects 1 product.

Products include Dlink Dir-822 Firmware.

How do I fix CVE-2026-7067?

No fix has been published for CVE-2026-7067 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-7067 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7067 exists.

Sources

Also known as GHSA-5qjf-gvp4-pqxh.