CVE-2026-85222 Details
Description
A vulnerability has been found in D-Link DNS-340L 1.01B04. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/addon_center.cgi of the component Add-On Center. Such manipulation of the argument f_name/f_url/f_flag/f_login_user leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
An OS command injection vulnerability has been identified in the D-Link DNS-340L ShareCenter device running firmware version 1.01B04. The issue resides in the Add-On Center component, specifically within the '/cgi-bin/addon_center.cgi' file. The vulnerability is triggered by manipulating the 'f_name', 'f_url', 'f_flag', and 'f_login_user' parameters in a POST request. This exploitation allows authenticated remote attackers to execute arbitrary commands on the device with the privileges of the CGI process user.
D-Link should be advised to replace the current method of constructing shell commands with safer, argument-vector APIs that do not invoke the shell. Additionally, they should treat add-on names, URLs, flags, and usernames as structured data rather than shell components, enforce strict allowlists for these values, and implement server-side authorization and CSRF protections for add-on management actions.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 3, 2026CISA-ADP
Assessed Sep 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/DLINK-CMD-007-vulndb.md | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-85222 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/894212 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/398421 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/398421/cti | [email protected] | Content Wall |
| https://www.dlink.com/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| D-Link DNS-340L | DNS-340L REVA 1.01B04 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 4, 2026 | CVE Modified | CISA-ADP |
| Sep 3, 2026 | New CVE Received | [email protected] |