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CVE-2024-3272

Critical 9.8 Exploited in the wild (KEV)

Confirmed active exploitation — CISA KEV catalog

Name
D-Link Multiple NAS Devices Use of Hard-Coded Credentials Vulnerability
Added to catalog
Remediation due date (US federal)
Required action
This vulnerability affects legacy D-Link products. All associated hardware revisions have reached their end-of-life (EOL) or end-of-service (EOS) life cycle and should be retired and replaced per vendor instructions.

Description

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as very critical, has been found in D-Link DNS-320L, DNS-325, DNS-327L and DNS-340L up to 20240403. This issue affects some unknown processing of the file /cgi-bin/nas_sharing.cgi of the component HTTP GET Request Handler. The manipulation of the argument user with the input messagebus leads to hard-coded credentials. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-259283. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

Metrics

CVSS 3.1
9.8 (CRITICAL) Score source: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — exploit probability
98% (percentile: 100) as of 2 November 2026
CWE
CWE-798

Affected products

dlink: dns-320l firmware; dlink: dns-320l; dlink: dns-120 firmware; dlink: dns-120; dlink: dnr-202l firmware; dlink: dnr-202l; dlink: dns-315l firmware; dlink: dns-315l; dlink: dns-320 firmware; dlink: dns-320; dlink: dns-320lw firmware; dlink: dns-320lw; dlink: dns-321; dlink: dns-321 firmware; dlink: dnr-322l

References