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Vulnerabilities

Vulnerability · CVE-2020-25506

D-Link DNS-320 Device Command Injection Vulnerability

Published Feb 2, 2021 · catalog updated Jun 16, 2026 · D-Link DNS-320 Storage Device

Patch now

CVE-2020-25506 is in the CISA known-exploited catalog, due May 3, 2022. Confirm D-Link DNS-320 Storage Device against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
99.97%
Remediation
Remediation guidance
Affected products
cpe dlink/dns-320 firmware · vendor D-Link DNS-320 Device · vendor D-Link DNS-320 Storage Device

D-Link DNS-320 device contains a command injection vulnerability in the sytem_mgr.cgi component that may allow for remote code execution. VulnCheck canary evidence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe dlink/dns-320 firmware2.06b01
  • vendor D-Link DNS-320 Deviceversion unspecified
  • vendor D-Link DNS-320 Storage Deviceversion unspecified

How to fix CVE-2020-25506

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2020-25506 is in the CISA known-exploited catalog, due May 3, 2022. Confirm D-Link DNS-320 Storage Device against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with dlink/dns-320 firmware 2.06b01. Apply updates per vendor instructions.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 99.97%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 2, 2021 · Catalog

    Detected

    D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead to remote arbitrary code execution.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead to remote arbitrary code execution.

Sources

  • CISA KEVConfirmed exploitationCVE-2020-25506

    D-Link DNS-320 device contains a command injection vulnerability in the sytem_mgr.cgi component that may allow for remote code execution.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2020-25506

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-25506

    30-day exploitation probability 100.0%

    first.org
  • NIST NVDVulnerability recordCVE-2020-25506

    D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead to remote arbitrary code execution.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2020-25506

    D-Link DNS-320 device contains a command injection vulnerability in the sytem_mgr.cgi component that may allow for remote code execution.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.