Vulnerability · Published Jun 22, 2022 · Assigned by krcert
CVE-2021-26637SiHAS Improper Authentication vulnerability
High 8.8
In plain English
A high-severity improper authentication in SiHAS firmware from Shina System Co.,Ltd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.9%top 20.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Shina System Co.,Ltd | SiHAS firmware | 1.xx |
| Shina System Co.,Ltd | SiHAS old app | old app |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H