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CVE-2019-16920

Published: Sep 27, 2019Updated: Nov 7, 2025 Sources: CVE List NVD BDUCWE-78
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
100.0%
Top 0.0%
CISA KEV
Active Exploitation
Since Mar 25, 2022
Exploits
2 Known
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

n/an/a
dir-655 firmwaredlinkNetworking Infrastructure
dir-866l firmwaredlinkNetworking Infrastructure
dir-652 firmwaredlinkNetworking Infrastructure
dhp-1565 firmwaredlinkNetworking Infrastructure
dlinkcommercialTWNetworking Infrastructure
and 10 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Mar 25, 2022
Remediation due:Apr 15, 2022

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

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Am I actually vulnerable?2 Nuclei templates available — see how to check your systems. How to verify Rather we check it for you?We'll check your whole external perimeter for exposure — free. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://fortiguard.com/zeroday/FG-VD-19-117
fortiguard.com
https://www.seebug.org/vuldb/ssvid-98079
seebug.org
https://medium.com/%4080vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3
medium.com
and 6 more references View all →

Timeline

Published
Sep 27, 2019
Added to CISA KEV
Mar 25, 2022
Last Updated
Nov 7, 2025

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