Background exploitation KEV catalog No authentication
CVE-2024-3273

D-Link Multiple NAS Devices Command Injection Vulnerability

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, was found in D-Link DNS-320L, DNS-325, DNS-327L and DNS-340L up to 20240403. Affected is an unknown function of the file /cgi-bin/nas_sharing.cgi of the…

CheckOps priority index
8.3/10 Patch within 24 h
Severity7.3
Probability10.0
Exploitation4/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 99.99% higher than 99.99% of CVEs
CVSS 3.1 7.3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:
Exploited for 936 days 11 Apr 2024
CISA due date 02 May 2024 for US federal agencies

Exploitation probability EPSS · FIRST

05010025 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

  • KEV catalog (CISA)11 Apr 2024
  • Exploited in EUVD (ENISA)11 Apr 2024
  • Used by ransomwareno
  • EPSS above 10 %99.99%
  • No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: 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.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, was found in D-Link DNS-320L, DNS-325, DNS-327L and DNS-340L up to 20240403. Affected is an unknown function of the file /cgi-bin/nas_sharing.cgi of the component HTTP GET Request Handler. The manipulation of the argument system leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-259284. 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.

Affected products

DNS-327LDNS-320LDNS-325DNS-340LMultiple NAS Devices
Affected versions
  • 20240403
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 100.00%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2025-29635D-Link DIR-823X Command Injection Vulnerability
    7.3 · Background exploitation
  • CVE-2022-37055D-Link Routers Buffer Overflow Vulnerability
    8.0 · Background exploitation
  • CVE-2022-40799D-Link DNR-322L Download of Code Without Integrity Check Vulnerability
    6.3 · Background exploitation
  • CVE-2020-25079D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
    6.9 · Background exploitation
  • CVE-2020-25078D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability
    8.3 · Background exploitation
  • CVE-2024-0769D-Link DIR-859 Router Path Traversal Vulnerability
    7.0 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities