Description
An issue was discovered in SMA Solar Technology products. A secondary authentication system is available for Installers called the Grid Guard system. This system uses predictable codes, and a single Grid Guard code can be used on any SMA inverter. Any such code, when combined with the installer account, allows changing very sensitive parameters. NOTE: the vendor reports that Grid Guard is not an authentication feature; it is only a tracing feature. Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
| sma | sunny_boy_3600_firmware | - |
| sma | sunny_boy_5000_firmware | - |
| sma | sunny_tripower_core1_firmware | - |
| sma | sunny_tripower_15000tl_firmware | - |
| sma | sunny_tripower_20000tl_firmware | - |
| sma | sunny_tripower_25000tl_firmware | - |
| sma | sunny_tripower_5000tl_firmware | - |
| sma | sunny_tripower_12000tl_firmware | - |
| sma | sunny_tripower_60_firmware | - |
| sma | sunny_boy_3000tl_firmware | - |
| sma | sunny_boy_3600tl_firmware | - |
| sma | sunny_boy_4000tl_firmware | - |
| sma | sunny_boy_5000tl_firmware | - |
| sma | sunny_boy_1.5_firmware | - |
| sma | sunny_boy_2.5_firmware | - |
| sma | sunny_boy_3.0_firmware | - |
| sma | sunny_boy_3.6_firmware | - |
| sma | sunny_boy_4.0_firmware | - |
| sma | sunny_boy_5.0_firmware | - |
| sma | sunny_central_2200_firmware | - |
| sma | sunny_central_1000cp_xt_firmware | - |
| sma | sunny_central_800cp_xt_firmware | - |
| sma | sunny_central_850cp_xt_firmware | - |
| sma | sunny_central_900cp_xt_firmware | - |
| sma | sunny_central_500cp_xt_firmware | - |
| sma | sunny_central_630cp_xt_firmware | - |
| sma | sunny_central_720cp_xt_firmware | - |
| sma | sunny_central_760cp_xt_firmware | - |
| sma | sunny_central_storage_500_firmware | - |
| sma | sunny_central_storage_630_firmware | - |
| sma | sunny_central_storage_720_firmware | - |
| sma | sunny_central_storage_760_firmware | - |
| sma | sunny_central_storage_800_firmware | - |
| sma | sunny_central_storage_850_firmware | - |
| sma | sunny_central_storage_900_firmware | - |
| sma | sunny_central_storage_1000_firmware | - |
| sma | sunny_central_storage_2200_firmware | - |
| sma | sunny_central_storage_2500-ev_firmware | - |
| sma | sunny_boy_storage_2.5_firmware | - |
References
- http://www.sma.de/en/statement-on-cyber-security.html
- http://www.sma.de/fileadmin/content/global/specials/documents/cyber-security/Whitepaper-Cyber-Security-AEN1732_07.pdf
- https://horusscenario.com/CVE-information/Third Party Advisory
- http://www.sma.de/en/statement-on-cyber-security.html
- http://www.sma.de/fileadmin/content/global/specials/documents/cyber-security/Whitepaper-Cyber-Security-AEN1732_07.pdf
- https://horusscenario.com/CVE-information/Third Party Advisory
Timeline
- Published
- Aug 5, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified