CVE-2026-85222: D-Link DNS-340L Add-On Center addon_center.cgi os command injection

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-03 · updated 2026-09-04
Weakness: CWE-77

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.

Affected products

D-Link DNS-340L: 1.01B04

References

https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/DLINK-CMD-007-vulndb.md
https://vuldb.com/cve/CVE-2026-85222
https://vuldb.com/submit/894212
https://vuldb.com/vuln/398421
https://vuldb.com/vuln/398421/cti
https://www.dlink.com/

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