CVE-2017-9860: SMA Sunny Boy 1.5 Firmware

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

An issue was discovered in SMA Solar Technology products. An attacker can use Sunny Explorer or the SMAdata2+ network protocol to update the device firmware without ever having to authenticate. If an attacker is able to create a custom firmware version that is accepted by the inverter, the inverter is compromised completely. This allows the attacker to do nearly anything: for example, giving access to the local OS, creating a botnet, using the inverters as a stepping stone into companies, etc. NOTE: the vendor reports that this attack has always been blocked by "a final integrity and compatibility check." Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected

Affected products

SMA Sunny Boy 1.5 Firmware: affected versions not specified
SMA Sunny Boy 2.5 Firmware: affected versions not specified
SMA Sunny Boy 3.0 Firmware: affected versions not specified
SMA Sunny Boy 3.6 Firmware: affected versions not specified
SMA Sunny Boy 3000tl Firmware: affected versions not specified
SMA Sunny Boy 3600 Firmware: affected versions not specified
SMA Sunny Boy 3600tl Firmware: affected versions not specified
SMA Sunny Boy 4.0 Firmware: affected versions not specified
SMA Sunny Boy 4000tl Firmware: affected versions not specified
SMA Sunny Boy 5.0 Firmware: affected versions not specified
SMA Sunny Boy 5000 Firmware: affected versions not specified
SMA Sunny Boy 5000tl Firmware: affected versions not specified
SMA Sunny Boy Storage 2.5 Firmware: affected versions not specified
SMA Sunny Central 1000cp Xt Firmware: affected versions not specified
SMA Sunny Central 2200 Firmware: affected versions not specified
SMA Sunny Central 500cp Xt Firmware: affected versions not specified
SMA Sunny Central 630cp Xt Firmware: affected versions not specified
SMA Sunny Central 720cp Xt Firmware: affected versions not specified
SMA Sunny Central 760cp Xt Firmware: affected versions not specified
SMA Sunny Central 800cp Xt Firmware: affected versions not specified
SMA Sunny Central 850cp Xt Firmware: affected versions not specified
SMA Sunny Central 900cp Xt Firmware: affected versions not specified
SMA Sunny Central Storage 1000 Firmware: affected versions not specified
SMA Sunny Central Storage 2200 Firmware: affected versions not specified
SMA Sunny Central Storage 2500-Ev Firmware: affected versions not specified
and 14 more

Published 2017-08-05. Last modified 2026-06-17.