CVE-2020-36910

Cayin Signage Media Player 3.0 Authenticated Remote Command Injection via NTP Parameter

State: Published
Severity: 8.7 High
Published: Jan 6, 2026
Updated: Jul 15, 2026
Reserved: Jan 3, 2026

Description

Cayin Signage Media Player 3.0 contains an authenticated remote command injection vulnerability in system.cgi and wizard_system.cgi pages. Attackers can exploit the 'NTP_Server_IP' parameter with default credentials to execute arbitrary shell commands as root.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	VulnCheck

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
SMP-8000QDCAYIN Technology	3.0Affected
SMP-8000CAYIN Technology	3.0Affected
SMP-6000CAYIN Technology	3.0 Build 19025Affected 1.0 Build 14246Affected 1.0 Build 14199Affected 1.0 Build 14167Affected 1.0 Build 14097Affected 1.0 Build 14090Affected 1.0 Build 14069Affected 1.0 Build 14062Affected
SMP-4000CAYIN Technology	1.0 Build 14098Affected 1.0 Build 14092Affected 1.0 Build 14087Affected
SMP-2310CAYIN Technology	3.0Affected
SMP-2300CAYIN Technology	3.0 Build 19316Affected
SMP-2210CAYIN Technology	3.0 Build 19025Affected
SMP-2200CAYIN Technology	3.0 Build 19029Affected 3.0 Build 19025Affected
SMP-2100CAYIN Technology	10.0 Build 16228Affected 3.0Affected
SMP-2000CAYIN Technology	1.0 Build 14167Affected 1.0 Build 14087Affected
SMP-1000CAYIN Technology	1.0 Build 14099Affected
SMP-PROPLUSCAYIN Technology	1.5 Build 10081Affected
SMP-WEBPLUSCAYIN Technology	6.5 Build 11126Affected
SMP-WEB4CAYIN Technology	2.0 Build 13073Affected 2.0 Build 11175Affected 1.5 Build 11476Affected 1.5 Build 11126Affected 1.0 Build 10301Affected
SMP-300CAYIN Technology	1.0 Build 14177Affected
SMP-200CAYIN Technology	1.0 Build 13080Affected 1.0 Build 12331Affected
SMP-PRO4CAYIN Technology	1.0Affected
SMP-NEO2CAYIN Technology	1.0Affected
SMP-NEOCAYIN Technology	1.0Affected

References

ExploitDB-48557exploit
Cayin Technology Official Websiteproduct
Zero Science Lab Disclosure (ZSL-2020-5569)third-party-advisory
Packet Storm Security Exploit Entryexploit
IBM X-Force Vulnerability Exchangevdb-entry
CXSecurity Vulnerability Listingexploit
VulnCheck Advisory: Cayin Signage Media Player 3.0 Authenticated Remote Command Injection via NTP Parameterthird-party-advisory

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