CVE-2019-16920

CRITICAL9.8

CISA KEV

Published 2019-09-27 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2019-16920 is a critical-severity (CVSS 9.8) vulnerability in D-Link Multiple Routers. CISA added it to the Known Exploited Vulnerabilities catalog on March 25, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by April 15, 2022. CISA does not currently list it as used in ransomware campaigns. D-Link has 26 vulnerabilities in the KEV catalog, 2 of them linked to ransomware.

All 26 known-exploited D-Link vulnerabilities →

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: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-78CWE-78

CISA Known-Exploited Vulnerability

Product: D-Link — Multiple Routers

Name: D-Link Multiple Routers Command Injection Vulnerability

Date added: 2022-03-25 · Due: 2022-04-15

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

References

View on NVD

More exploited D-Link vulnerabilities

Most recently added to CISA KEV

CVE-2025-29635
DIR-823X — D-Link DIR-823X Command Injection Vulnerability
added 2026-04-24
CVE-2022-37055
Routers — D-Link Routers Buffer Overflow Vulnerability
added 2025-12-08
CVE-2020-25078
DCS-2530L and DCS-2670L Devices — D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability
added 2025-08-05
CVE-2020-25079
DCS-2530L and DCS-2670L Devices — D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
added 2025-08-05
CVE-2022-40799
DNR-322L — D-Link DNR-322L Download of Code Without Integrity Check Vulnerability
added 2025-08-05
CVE-2024-0769
DIR-859 Router — D-Link DIR-859 Router Path Traversal Vulnerability
added 2025-06-25

View all →

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