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CVE-2017-9858

Published: Aug 5, 2017Updated: May 13, 2026 Sources: CVE List NVDCWE-200
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.1%
Top 21.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

An issue was discovered in SMA Solar Technology products. By sending crafted packets to an inverter and observing the response, active and inactive user accounts can be determined. This aids in further attacks (such as a brute force attack) as one now knows exactly which users exist and which do not. NOTE: the vendor's position is that this "is not a security gap per se." Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-200

Affected Products

sunny boy 3600 firmwaresmaICS / OT / IoT
sunny boy 5000 firmwaresmaICS / OT / IoT
sunny tripower core1 firmwaresmaICS / OT / IoT
sunny tripower 15000tl firmwaresmaICS / OT / IoT
sunny tripower 20000tl firmwaresmaICS / OT / IoT
smacommercialUSICS / OT / IoTaka sunny boy 1.5 firmware, sunny boy 2.5 firmware, sunny boy 3000tl firmware
and 35 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

http://www.sma.de/en/statement-on-cyber-security.html
sma.de
http://www.sma.de/fileadmin/content/global/specials/documents/cyber-security/Whitepaper-Cyber-Security-AEN1732_07.pdf
sma.de
https://horusscenario.com/CVE-information/
horusscenario.com

Timeline

Published
Aug 5, 2017
Last Updated
May 13, 2026

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