CVE-2019-16920
Detail
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
References to Advisories, Solutions, and Tools
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This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference
CISA's BOD 22-01 and Known
Exploited Vulnerabilities Catalog for further guidance and requirements.
Vulnerability Name
Date Added
Due Date
Required Action
D-Link Multiple Routers Command Injection Vulnerability
03/25/2022
04/15/2022
The impacted product is end-of-life and should be disconnected if still in use.
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
NIST
CISA-ADP
Change History
13 change records found show changes
Modified Analysis by NIST 11/07/2025 2:37:32 PM
Action
Type
Old Value
New Value
Added
Reference Type
CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16920 Types: US Government Resource
CVE Modified by CISA-ADP 10/21/2025 8:16:36 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16920
CVE Modified by CISA-ADP 10/21/2025 4:17:28 PM
Action
Type
Old Value
New Value
Removed
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16920
CVE Modified by CISA-ADP 10/21/2025 3:17:48 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16920
Modified Analysis by NIST 4/03/2025 3:51:22 PM
Action
Type
Old Value
New Value
CVE Modified by CISA-ADP 2/04/2025 3:15:32 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-78
CVE Modified by CVE 11/20/2024 11:31:20 PM
Action
Type
Old Value
New Value
Added
Reference
https://fortiguard.com/zeroday/FG-VD-19-117
Added
Reference
https://medium.com/%4080vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3
Added
Reference
https://www.kb.cert.org/vuls/id/766427
Added
Reference
https://www.seebug.org/vuldb/ssvid-98079
Modified Analysis by NIST 7/16/2024 1:54:26 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dap-1533_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:dlink:dap-1533:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dir-615_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:dlink:dir-615:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dir-825_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:dlink:dir-825:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dir-835_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:dlink:dir-835:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dir-855l_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:dlink:dir-855l:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dir-862l_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:dlink:dir-862l:-:*:*:*:*:*:*:*
Changed
Reference Type
https://fortiguard.com/zeroday/FG-VD-19-117 Third Party Advisory
https://fortiguard.com/zeroday/FG-VD-19-117 Broken Link, Third Party Advisory
Changed
Reference Type
https://medium.com/%4080vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3 No Types Assigned
https://medium.com/%4080vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3 Exploit, Third Party Advisory
Changed
Reference Type
https://www.kb.cert.org/vuls/id/766427 No Types Assigned
https://www.kb.cert.org/vuls/id/766427 Third Party Advisory, US Government Resource
Changed
Reference Type
https://www.seebug.org/vuldb/ssvid-98079 No Types Assigned
https://www.seebug.org/vuldb/ssvid-98079 Exploit, Third Party Advisory
CVE Modified by MITRE 5/14/2024 1:47:08 AM
Action
Type
Old Value
New Value
CVE Modified by MITRE 11/06/2023 10:06:03 PM
Action
Type
Old Value
New Value
Added
Reference
MITRE https://medium.com/%4080vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3 [No types assigned]
Removed
Reference
MITRE https://medium.com/@80vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3
CVE Modified by MITRE 10/23/2019 4:15:13 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.kb.cert.org/vuls/id/766427 [No Types Assigned]
CVE Modified by MITRE 10/10/2019 5:15:10 PM
Action
Type
Old Value
New Value
Added
Reference
https://medium.com/@80vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3 [No Types Assigned]
Added
Reference
https://www.seebug.org/vuldb/ssvid-98079 [No Types Assigned]
Initial Analysis by NIST 10/01/2019 2:59:55 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added
CVSS V2
NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Added
CWE
CWE-78
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dhp-1565_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.01
OR
cpe:2.3:h:dlink:dhp-1565:ax:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dir-652_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:dlink:dir-652:ax:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dir-655_firmware:*:*:*:*:*:*:*:* versions up to (including) 3.02b05
OR
cpe:2.3:h:dlink:dir-655:cx:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:dlink:dir-866l_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.03b04
OR
cpe:2.3:h:dlink:dir-866l:ax:*:*:*:*:*:*:*
Changed
Reference Type
https://fortiguard.com/zeroday/FG-VD-19-117 No Types Assigned
https://fortiguard.com/zeroday/FG-VD-19-117 Third Party Advisory
Quick Info
CVE Dictionary Entry: CVE-2019-16920 NVD
Published Date: 09/27/2019 NVD
Last Modified: 11/07/2025
Source: MITRE