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Critical severity · published Aug 31, 2026
CVE-2026-82691
D-Link DNS-320L/DNS-327L/DNS-340L/DNS-345 CGI usb_device.cgi os command injection
9.1
CVSS
3.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)3.6% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DN
DNS-320L · D-Link
20260717 · source: vendor
DN
DNS-327L · D-Link
20260717 · source: vendor
DN
DNS-340L · D-Link
20260717 · source: vendor
DN
DNS-345 · D-Link
20260717 · source: vendor
Affected product
DN
DNS-320L
D-Link
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82691
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82691
github.com
https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/DLINK-CMD-005-vulndb.md
vuldb.com
https://vuldb.com/cve/CVE-2026-82691
vuldb.com
https://vuldb.com/submit/894210
vuldb.com
https://vuldb.com/vuln/397179
vuldb.com
https://vuldb.com/vuln/397179/cti
www.dlink.com
https://www.dlink.com/
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