Critical 9.9Published Aug 31, 2026

CVE-2026-82689D-Link DNS-320L/DNS-327L/DNS-340L/DNS-345 ISO Image isomount_mgr.cgi os command injection

Updated under an hour ago (2026-10-19 07:23 UTC)

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It affects D-Link DNS-320L and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for D-Link DNS-320L

Exploited in the last 30 days

A vulnerability was detected in D-Link DNS-320L, DNS-327L, DNS-340L and DNS-345 up to 20260717. Affected is an unknown function of the file /cgi-bin/isomount_mgr.cgi of the component ISO Image Handler. The manipulation of the argument upIsoRootPath results in os command injection. The attack can be executed remotely. The exploit is now public and may be used.

CVSS: 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-78, CWE-77
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Aug 31, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

D-Link DNS-320L d-link:dns-320l	20260717	CNA record
D-Link DNS-327L d-link:dns-327l	20260717	CNA record
D-Link DNS-340L d-link:dns-340l	20260717	CNA record
D-Link DNS-345 d-link:dns-345	20260717	CNA record

References

https://vuldb.com/vuln/397177vdb-entry, technical-description
https://vuldb.com/vuln/397177/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-82689third-party-advisory
https://vuldb.com/submit/894201third-party-advisory
https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/DLINK-CMD-003-vulndb.mdexploit
https://www.dlink.com/product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.