CVE-2019-16920

CRITICAL
9.8
CVSS Score
Published: September 27, 2019 at 11:34 AM UTC
Updated: June 17, 2026 at 02:22 AM UTC
20 products affected across 1 vendorDir 825 FirmwareDir 615 FirmwareDir 655 Firmware

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Severity
CRITICAL9.8
Exploitation
CISA KEV
Exploit prediction
EPSS 100%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score100.0%

EPSS (Exploit Prediction Scoring System) estimates a 100.0% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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

Required Action
The impacted product is end-of-life and should be disconnected if still in use.
Ransomware Use
Unknown
Added to KEV
Mar 25, 2022
Remediation Due
Apr 15, 2022
1661 days overdue

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
dlink-dap-1533 (same device)
v ≤ 1.01
dlink-dhp-1565 (same device)
All versions
dlink-dir-615 (same device)
All versions
dlink-dir-652 (same device)
v ≤ 3.02b5
dlink-dir-655 (same device)
All versions
dlink-dir-825 (same device)
All versions
dlink-dir-835 (same device)
All versions
dlink-dir-855l (same device)
All versions
dlink-dir-862l (same device)
v ≤ 1.03b4
dlink-dir-866l (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

x_refsource_MISCBroken LinkThird Party Advisory
https://fortiguard.com/zeroday/FG-VD-19-117
Third Party Advisoryx_refsource_CERT-VNUS Government Resource
https://www.kb.cert.org/vuls/id/766427
x_refsource_MISCExploitThird Party Advisory
https://www.seebug.org/vuldb/ssvid-98079
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16920

SSVC — Action Prioritization

SSVCActiveAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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