CVE-2026-7067 Details
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.
A command injection vulnerability has been identified in the D-Link DIR-822 router running firmware version A_101. This vulnerability resides in the udhcpd DHCP service, specifically within the file /udhcpcd/dhcpd.c. The issue arises because the DHCP server improperly sanitizes the hostname provided by clients in DHCP Option 12. This allows remote attackers to inject arbitrary commands that are executed on the router via the system function. Notably, this vulnerability affects devices that are no longer supported by D-Link.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://tzh00203.notion.site/D-Link-DIR-822-A1-Command-Injection-in-udhcpd-via-DHCP-Hostname-337b5c52018a80d9b638d0fa59969e6b | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/798645 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/359642 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/359642/cti | [email protected] | Permissions RequiredVDB Entry |
| https://www.dlink.com/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| dlink dir-822 firmware | 1.0.1 |
CPE
Remediation
| |
| dlink dir-822 | a1 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 30, 2026 | Initial Analysis | [email protected] |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Apr 27, 2026 | New CVE Received | [email protected] |