← All Advisories

D-Link DNS-340L 1.01B04 Dropbox CGI Injects the callback_url and sync_interval Fields Directly into the Shell, Allowing Low-Privileged Authenticated Attackers to Execute Remote Commands

Last refreshed2026-09-28

Status: NEW  |  Advisory ID: CVE-2026-85223

Key Details

CVECVE-2026-85223
CVSS Score / Version9.9 (Critical) / CVSS v3.1
Updated2026-09-04
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Classified asCWE-77 (Improper Neutralization of Special Elements used in a Command ('Command Injection'))

What to Know

A vulnerability was found in D-Link DNS-340L 1.01B04. Affected by this issue is some unknown functionality of the file /cgi-bin/dropbox.cgi of the component CGI Handler. Performing a manipulation of the argument callback_url/sync_interval results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used. (NVD)

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-85223
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-85223