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D-Link DNS-320L, DNS-327L, DNS-340L, and DNS-345 USB Device Handler Passes Unsanitized Input to the Shell, Enabling Authenticated Admin Remote Code Execution

Last refreshed2026-09-28

Status: NEW  |  Advisory ID: CVE-2026-82691

Key Details

CVECVE-2026-82691
CVSS Score / Version9.1 (Critical) / CVSS v3.1
Updated2026-09-02
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is high; 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 has been found in D-Link DNS-320L, DNS-327L, DNS-340L and DNS-345 up to 20260717. Affected by this issue is some unknown functionality of the file /cgi-bin/usb_device.cgi of the component CGI Handler. Such manipulation of the argument f_ups_ip leads to os command injection. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. (NVD)

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-82691
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-82691