Is CVE-2017-9859 in the CISA KEV catalog?

No. CVE-2017-9859 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-9859?

CVE-2017-9859 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-9859?

CVE-2017-9859 has an EPSS score of 1.13% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-9859?

No published fix for CVE-2017-9859 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-9859

CRITICAL

9.8

CVSS v3

NVD

Description

An issue was discovered in SMA Solar Technology products. The inverters make use of a weak hashing algorithm to encrypt the password for REGISTER requests. This hashing algorithm can be cracked relatively easily. An attacker will likely be able to crack the password using offline crackers. This cracked password can then be used to register at the SMA servers. NOTE: the vendor's position is that "we consider the probability of the success of such manipulation to be extremely low." Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected

CWE-327

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.13%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Third-Party Advisory1

horusscenario.com

Other references2

Embed a live status badge for CVE-2017-9859

Markdown

[![CVE-2017-9859](https://tridentstack.com/cve/badge/CVE-2017-9859.svg)](https://tridentstack.com/cve/CVE-2017-9859)

HTML

<a href="https://tridentstack.com/cve/CVE-2017-9859"><img src="https://tridentstack.com/cve/badge/CVE-2017-9859.svg" alt="CVE-2017-9859"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.