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Vulnerabilities

Vulnerability · CVE-2019-16920

D-Link Multiple Routers Command Injection Vulnerability

Published Sep 27, 2019 · catalog updated Jun 16, 2026 · D-Link Multiple Routers

Patch now

CVE-2019-16920 is in the CISA known-exploited catalog, due Apr 15, 2022. Confirm D-Link Multiple Routers against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
100.00%
Remediation
Remediation guidance
Affected products
cpe dlink/dap-1533 firmware · cpe dlink/dhp-1565 firmware · cpe dlink/dir-615 firmware · cpe dlink/dir-652 firmware · cpe dlink/dir-655 firmware · cpe dlink/dir-825 firmware

Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The issue occurs when the attacker sends an arbitrary input to a "PingTest" device common gateway interface that could lead to common injection. An attacker who successfully triggers the command injection could achieve full system compromise. Later, it was independently found that these are also affected: DIR-855L, DAP-1533, DIR-862L, DIR-615, DIR-835, and DIR-825.

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/dap-1533 firmwareversion unspecified
  • cpe dlink/dhp-1565 firmwareversion unspecified
  • cpe dlink/dir-615 firmwareversion unspecified
  • cpe dlink/dir-652 firmwareversion unspecified
  • cpe dlink/dir-655 firmwareversion unspecified
  • cpe dlink/dir-825 firmwareversion unspecified
  • cpe dlink/dir-835 firmwareversion unspecified
  • cpe dlink/dir-855l firmwareversion unspecified
  • cpe dlink/dir-862l firmwareversion unspecified
  • cpe dlink/dir-866l firmwareversion unspecified
  • vendor D-Link Multiple Routersversion unspecified

How to fix CVE-2019-16920

What to do

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

Should you patch?

CVE-2019-16920 is in the CISA known-exploited catalog, due Apr 15, 2022. Confirm D-Link Multiple Routers against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. The impacted product is end-of-life and should be disconnected if still in use.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 100.00%. 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. Sep 27, 2019 · Catalog

    Detected

    Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The issue occurs when the attacker sends an arbitrary input to a "PingTest" device common gateway interface that could lead to common injection. An attacker who successfully triggers the command injection could achieve full system compromise. Later, it was independently found that the

  2. Mar 25, 2022 · CISA KEV

    Known exploited

    The impacted product is end-of-life and should be disconnected if still in use.

  3. Apr 15, 2022 · CISA KEV

    Remediation due

    The impacted product is end-of-life and should be disconnected if still in use.

  4. Jun 16, 2026 · Catalog

    Updated

    Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The issue occurs when the attacker sends an arbitrary input to a "PingTest" device common gateway interface that could lead to common injection. An attacker who successfully triggers the command injection could achieve full system compromise. Later, it was independently found that the

Sources

  • CISA KEVConfirmed exploitationCVE-2019-16920

    Multiple D-Link routers contain a command injection vulnerability which can allow attackers to achieve full system compromise.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2019-16920

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2019-16920

    30-day exploitation probability 100.0%

    first.org
  • NIST NVDVulnerability recordCVE-2019-16920

    Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The issue occurs when the attacker sends an arbitrary input to a "PingTest" device common gateway interface that could lead to common injection. An attacker who succ

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2019-16920

    Multiple D-Link routers contain a command injection vulnerability which can allow attackers to achieve full system compromise.

    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.