CVE-2021-47708

9.3 criticalEPSS 0.5%

Critical (9.3). EPSS 0.5% chance of exploitation in the next 30 days.

COMMAX Smart Home System CDP-1020n contains an SQL injection vulnerability that allows attackers to bypass authentication by injecting arbitrary SQL code through the 'id' parameter in 'loginstart.asp'. Attackers can exploit this by sending a POST request with malicious 'id' values to manipulate database queries and gain unauthorized access.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-31)
CWE: CWE-89
Published: 2025-12-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/zeroscience
https://www.commax.com
https://www.exploit-db.com/exploits/50207
https://www.vulncheck.com/advisories/commax-smart-home-iot-control-system-sql-injection-authentication-bypass
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5662.php

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