{"id":"CVE-2017-9853","aliases":["EUVD-2017-18763","GHSA-6phr-fw4x-4vgj"],"status":"disputed","title":"** DISPUTED ** An issue was discovered in SMA Solar Technology products. All inverters have a...","description":"An issue was discovered in SMA Solar Technology products. All inverters have a very weak password policy for the user and installer password. No complexity requirements or length requirements are set. Also, strong passwords are impossible due to a maximum of 12 characters and a limited set of characters. NOTE: the vendor reports that the 12-character limit provides \"a very high security standard.\" Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01716,"percentile":0.7757,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-521"],"published":"2017-08-05T17:00:00Z","modified":"2026-06-17T01:29:02Z","products":[{"vendor":"sma","product":"sunny_boy_1.5_firmware"},{"vendor":"sma","product":"sunny_boy_2.5_firmware"},{"vendor":"sma","product":"sunny_boy_3.0_firmware"},{"vendor":"sma","product":"sunny_boy_3.6_firmware"},{"vendor":"sma","product":"sunny_boy_3000tl_firmware"},{"vendor":"sma","product":"sunny_boy_3600_firmware"},{"vendor":"sma","product":"sunny_boy_3600tl_firmware"},{"vendor":"sma","product":"sunny_boy_4.0_firmware"},{"vendor":"sma","product":"sunny_boy_4000tl_firmware"},{"vendor":"sma","product":"sunny_boy_5.0_firmware"},{"vendor":"sma","product":"sunny_boy_5000_firmware"},{"vendor":"sma","product":"sunny_boy_5000tl_firmware"},{"vendor":"sma","product":"sunny_boy_storage_2.5_firmware"},{"vendor":"sma","product":"sunny_central_1000cp_xt_firmware"},{"vendor":"sma","product":"sunny_central_2200_firmware"},{"vendor":"sma","product":"sunny_central_500cp_xt_firmware"},{"vendor":"sma","product":"sunny_central_630cp_xt_firmware"},{"vendor":"sma","product":"sunny_central_720cp_xt_firmware"},{"vendor":"sma","product":"sunny_central_760cp_xt_firmware"},{"vendor":"sma","product":"sunny_central_800cp_xt_firmware"},{"vendor":"sma","product":"sunny_central_850cp_xt_firmware"},{"vendor":"sma","product":"sunny_central_900cp_xt_firmware"},{"vendor":"sma","product":"sunny_central_storage_1000_firmware"},{"vendor":"sma","product":"sunny_central_storage_2200_firmware"},{"vendor":"sma","product":"sunny_central_storage_2500-ev_firmware"},{"vendor":"sma","product":"sunny_central_storage_500_firmware"},{"vendor":"sma","product":"sunny_central_storage_630_firmware"},{"vendor":"sma","product":"sunny_central_storage_720_firmware"},{"vendor":"sma","product":"sunny_central_storage_760_firmware"},{"vendor":"sma","product":"sunny_central_storage_800_firmware"},{"vendor":"sma","product":"sunny_central_storage_850_firmware"},{"vendor":"sma","product":"sunny_central_storage_900_firmware"},{"vendor":"sma","product":"sunny_tripower_12000tl_firmware"},{"vendor":"sma","product":"sunny_tripower_15000tl_firmware"},{"vendor":"sma","product":"sunny_tripower_20000tl_firmware"},{"vendor":"sma","product":"sunny_tripower_25000tl_firmware"},{"vendor":"sma","product":"sunny_tripower_5000tl_firmware"},{"vendor":"sma","product":"sunny_tripower_60_firmware"},{"vendor":"sma","product":"sunny_tripower_core1_firmware"}],"references":[{"url":"http://www.sma.de/en/statement-on-cyber-security.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://horusscenario.com/CVE-information/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"http://www.sma.de/fileadmin/content/global/specials/documents/cyber-security/Whitepaper-Cyber-Security-AEN1732_07.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-9853"},{"url":"https://horusscenario.com/CVE-information"},{"url":"https://github.com/advisories/GHSA-6phr-fw4x-4vgj"}],"sources":{"cve":[{"id":"CVE-2017-9853","description":"An issue was discovered in SMA Solar Technology products. All inverters have a very weak password policy for the user and installer password. No complexity requirements or length requirements are set. Also, strong passwords are impossible due to a maximum of 12 characters and a limited set of characters. NOTE: the vendor reports that the 12-character limit provides \"a very high security standard.\" Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected","status":"disputed","published":"2017-08-05T17:00:00Z","modified":"2024-08-05T17:18:02Z","updated_at":"2026-11-02T14:33:13.606903Z"}],"euvd":[{"id":"EUVD-2017-18763","description":"An issue was discovered in SMA Solar Technology products. All inverters have a very weak password policy for the user and installer password. No complexity requirements or length requirements are set. Also, strong passwords are impossible due to a maximum of 12 characters and a limited set of characters. NOTE: the vendor reports that the 12-character limit provides \"a very high security standard.\" Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected","status":"published","published":"2017-08-05T17:00:00Z","modified":"2024-08-05T17:18:02Z","updated_at":"2026-11-03T02:23:26.706423Z"}],"ghsa":[{"id":"GHSA-6phr-fw4x-4vgj","title":"** DISPUTED ** An issue was discovered in SMA Solar Technology products. All inverters have a...","description":"** DISPUTED ** An issue was discovered in SMA Solar Technology products. All inverters have a very weak password policy for the user and installer password. No complexity requirements or length requirements are set. Also, strong passwords are impossible due to a maximum of 12 characters and a limited set of characters. NOTE: the vendor reports that the 12-character limit provides \"a very high security standard.\" Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected.","status":"published","published":"2022-05-13T01:48:12Z","modified":"2024-03-30T05:01:34Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-521"],"updated_at":"2026-11-02T14:55:44.111751Z"}],"nvd":[{"id":"CVE-2017-9853","description":"An issue was discovered in SMA Solar Technology products. All inverters have a very weak password policy for the user and installer password. No complexity requirements or length requirements are set. Also, strong passwords are impossible due to a maximum of 12 characters and a limited set of characters. NOTE: the vendor reports that the 12-character limit provides \"a very high security standard.\" Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected","status":"disputed","published":"2017-08-05T17:29:00.49Z","modified":"2026-06-17T01:29:02.81Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-521"],"updated_at":"2026-11-02T14:03:57.282351Z"}]}}