CVE-2026-82691: OS Command Injection in D-Link DNS-320L
Description
CVE-2026-82691 is a critical OS command injection vulnerability affecting certain D-Link NAS devices including DNS-320L, DNS-327L, DNS-340L, and DNS-345 with firmware up to version 20260717. The flaw exists in the CGI Handler component, specifically in the /cgi-bin/usb_device.cgi file, where manipulation of the f_ups_ip argument allows remote attackers to execute arbitrary OS commands. This vulnerability has been publicly disclosed and carries a high risk due to its remote exploitability and potential impact.
CVSS v4.0
Score 9.4critical
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves OS command injection in the CGI Handler of D-Link DNS-320L, DNS-327L, DNS-340L, and DNS-345 devices running firmware up to 20260717. The injection point is the f_ups_ip argument in /cgi-bin/usb_device.cgi, which can be manipulated remotely to execute arbitrary operating system commands. The CVSS v3.1 base score is 9.4, indicating critical severity. No official patch or remediation has been provided in the available data. There are no known exploits in the wild at this time.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on affected devices, potentially leading to full system compromise. Given the critical CVSS score and the nature of OS command injection, the impact includes unauthorized control over the device and possible disruption or data compromise.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should monitor the vendor's advisory channels for updates. Until a fix is available, restricting access to the vulnerable CGI endpoint and limiting network exposure of affected devices may reduce risk.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vgqw-w77q-phfq
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-82691"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a95a0dfacd9273b4947df3b
Added to database: 08/31/2026, 15:42:23 UTC
Last enriched: 09/08/2026, 00:22:52 UTC
Last updated: 10/13/2026, 18:48:24 UTC
Views: 36
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