What is CVE-2017-9853?

CVE-2017-9853 is a critical-severity vulnerability in Sma Sunny Boy 1.5, classified under Weak Password Requirements. CVSS score: 9.8/10. Published 2017-08-05.

How severe is CVE-2017-9853?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Sma Sunny Boy 1.5

CVE-2017-9853

An issue was discovered in SMA Solar Technology products. All inverters have a very weak password policy for the user and installer password. No complexity requirements or length requirements are set. Also, strong passwords are impossible due to a maximum of 12 characters and a limited set of characters. NOTE: the vendor reports that the 12-character limit provides "a very high security standard." Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected

EPSS: 0.017 (75.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-521 — Weak Password Requirements

References

cve@mitre.org (x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_MISC)

Frequently asked questions

What is CVE-2017-9853?: CVE-2017-9853 is a critical-severity vulnerability in Sma Sunny Boy 1.5, classified under Weak Password Requirements. CVSS score: 9.8/10. Published 2017-08-05.
How severe is CVE-2017-9853?: Critical severity. CVSS v3 base score is 9.8 out of 10.