CVE-2026-82689

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

Published Aug 31, 2026 CVSS 4.0 · 9.4 Critical EPSS 3.3% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title D-Link DNS-320L/DNS-327L/DNS-340L/DNS-345 ISO Image isomount_mgr.cgi os command injection
First Time appeared D-link
D-link dns-320l
D-link dns-327l
D-link dns-340l
D-link dns-345
Weaknesses CWE-77
CWE-78
CPEs cpe:2.3:h:d-link:dns-320l:*:*:*:*:*:*:*:*
cpe:2.3:h:d-link:dns-327l:*:*:*:*:*:*:*:*
cpe:2.3:h:d-link:dns-340l:*:*:*:*:*:*:*:*
cpe:2.3:h:d-link:dns-345:*:*:*:*:*:*:*:*
Vendors & Products D-link
D-link dns-320l
D-link dns-327l
D-link dns-340l
D-link dns-345
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 9.9, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 9.9, 'vector': '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'}

cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Aug 31, 2026, 3:10 PM
Reserved
Aug 30, 2026, 5:35 PM
Status
Deferred
Published
Aug 31, 2026, 12:17 PM
Modified
Aug 31, 2026, 8:56 PM