CVE-2026-7067
D-Link DIR-822 udhcpd DHCP Service dhcpd.c system command injection
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.
INFO
Published Date :
April 27, 2026, 12:16 a.m.
Last Modified :
April 30, 2026, 2:09 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Upgrade to a supported firmware version.
- Replace the unsupported device.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-7067.
| URL | Resource |
|---|---|
| https://tzh00203.notion.site/D-Link-DIR-822-A1-Command-Injection-in-udhcpd-via-DHCP-Hostname-337b5c52018a80d9b638d0fa59969e6b | Exploit Third Party Advisory |
| https://vuldb.com/submit/798645 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/359642 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/359642/cti | Permissions Required VDB Entry |
| https://www.dlink.com/ | Product |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-7067 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-7067
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-7067 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-7067 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 30, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-822_firmware:1.0.1:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-822:a1:*:*:*:*:*:*:* Added Reference Type VulDB: https://tzh00203.notion.site/D-Link-DIR-822-A1-Command-Injection-in-udhcpd-via-DHCP-Hostname-337b5c52018a80d9b638d0fa59969e6b Types: Exploit, Third Party Advisory Added Reference Type VulDB: https://vuldb.com/submit/798645 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/359642 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/359642/cti Types: Permissions Required, VDB Entry Added Reference Type VulDB: https://www.dlink.com/ Types: Product -
Data Remediation by [email protected]
Apr. 29, 2026
Action Type Old Value New Value Changed CVSS V4.0 Score 6.9 5.5 -
New CVE Received by [email protected]
Apr. 27, 2026
Action Type Old Value New Value Added Tag unsupported-when-assigned Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CWE CWE-77 Added CWE CWE-74 Added Reference https://tzh00203.notion.site/D-Link-DIR-822-A1-Command-Injection-in-udhcpd-via-DHCP-Hostname-337b5c52018a80d9b638d0fa59969e6b Added Reference https://vuldb.com/submit/798645 Added Reference https://vuldb.com/vuln/359642 Added Reference https://vuldb.com/vuln/359642/cti Added Reference https://www.dlink.com/