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

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-04-27 · updated 2026-10-26
Weakness: CWE-74

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.

Affected products

D-Link DIR-822: 1.0.1

References

https://tzh00203.notion.site/D-Link-DIR-822-A1-Command-Injection-in-udhcpd-via-DHCP-Hostname-337b5c52018a80d9b638d0fa59969e6b
https://vuldb.com/submit/798645
https://vuldb.com/vuln/359642
https://vuldb.com/vuln/359642/cti
https://www.dlink.com/

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