Home/CVE/A vulnerability was determined in D-Link DIR-822 A_101. The impacted element is the function system of the file /udhcpcd
CVE

CVE-2026-7067

A vulnerability was determined in D-Link DIR-822 A_101. The impacted element is the function system of the file /udhcpcd

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.

HIGH · CVSS 7.3 EPSS 0.01623
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
▤

Affected Products & Versions

1
dlink dir-822 firmwareall versions
⚠

Public Exploits & PoCs

1
poctzh00203.notion.site · D-Link-DIR-822-A1-Command-Injection-in-udhcpd-via-DHCP-Ho...tzh00203.notion.site
▣

Scoring & Timeline

7.3
HIGH · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Apr 2026 · 12:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://vuldb.com/submit/798645Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/359642Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/359642/ctiPermissions RequiredVDB Entry
https://www.dlink.com/Product
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