CVE-2021-26637

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

There is no account authentication and permission check logic in the firmware and existing apps of SiHAS's SGW-300, ACM-300, GCM-300, so unauthorized users can remotely control the device.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-287 CWE-306 CWE-862

Affected software

Vendor	Product	Versions
Shina System Co.,Ltd	SiHAS firmware	1.xx
Shina System Co.,Ltd	SiHAS old app	old app

References

https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66782Broken Link, Third Party Advisory, VDB Entry
https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66782Broken Link, Third Party Advisory, VDB Entry

Timeline

Published: Jun 23, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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