Auth bypass in Sma Sunny_boy_1.5

CVE-2017-9855

An issue was discovered in SMA Solar Technology products. A secondary authentication system is available for Installers called the Grid Guard system. This system uses predictable codes, and a single Grid Guard code can be used on any SMA i…

Vulnerability class: Broken Access Control

EPSS: 0.016 (72.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-9855?
CVE-2017-9855 is a critical-severity vulnerability in Sma Sunny_boy_1.5, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2017-08-05.
How severe is CVE-2017-9855?
Critical severity. CVSS v3 base score is 9.8 out of 10.