Command Injection Vulnerability in D-Link DIR-822 Router
CVE-2026-7067

6.9MEDIUM

Key Information:

Vendor

D-link
Status
Dir-822
Vendor
CVE Published:
26 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7067?

A command injection vulnerability exists in the D-Link DIR-822 router, specifically within the udhcpd DHCP service's handling of the Hostname argument in the dhcpd.c file. An attacker could exploit this vulnerability remotely, allowing execution of arbitrary commands on the affected device. This issue affects devices that are no longer supported by D-Link, putting users at risk if they remain unpatched. Awareness and timely updates are essential to mitigate this vulnerability.

Affected Version(s)

DIR-822 A_101

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-7067 - Proof of Concept

References

https://vuldb.com/vuln/359642
vdb-entrytechnical-description
https://vuldb.com/vuln/359642/cti
signaturepermissions-required
https://vuldb.com/submit/798645
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

tian (VulDB User)
.