SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-3272

D-Link Multiple NAS Devices Use of Hard-Coded Credentials Vulnerability

KEVCRITICAL 9.8EPSS 98.1%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 2 May 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
98.11% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 11 April 2024 · due 2 May 2024
Weakness
CWE-798
Affected
dlink/dns-320l firmware · dlink/dns-120 firmware · dlink/dnr-202l firmware · dlink/dns-315l firmware · dlink/dns-320 firmware · dlink/dns-320lw firmware · dlink/dns-321 firmware · dlink/dnr-322l firmware · dlink/dns-323 firmware · dlink/dns-325 firmware · dlink/dns-326 firmware · dlink/dns-327l firmware · dlink/dnr-326 firmware · dlink/dns-340l firmware · dlink/dns-343 firmware · dlink/dns-345 firmware · dlink/dns-726-4 firmware · dlink/dns-1100-4 firmware · dlink/dns-1200-05 firmware · dlink/dns-1550-04 firmware
Source
cna@vuldb.com
EPSS trend
0%50%100%30 October 2026: 98.11%30 October 202630 October 2026

EPSS 98.1% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

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. https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10383; https://nvd.nist.gov/vuln/detail/CVE-2024-3272

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.