CVE-2017-9864: SMA Sunny Boy 1.5 Firmware

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

An issue was discovered in SMA Solar Technology products. An attacker can change the plant time even when not authenticated in any way. This changes the system time, possibly affecting lockout policies and random-number generators based on timestamps, and makes timestamps for data analysis unreliable. NOTE: the vendor reports that this is largely irrelevant because it only affects log-entry timestamps, and because the plant time would later be reset via NTP. (It has never been the case that a lockout policy or random-number generator was affected.) 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.