CVE-2017-9856 json
An issue was discovered in SMA Solar Technology products.
published 2017-08-05 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18766
- cvss
- 3.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
An issue was discovered in SMA Solar Technology products. Sniffed passwords from SMAdata2+ communication can be decrypted very easily. The passwords are "encrypted" using a very simple encryption algorithm. This enables an attacker to find the plaintext passwords and authenticate to the device. NOTE: the vendor reports that only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.66% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 3.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N |
| CNA | 3.1 | 3.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N |
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- sma sunny_boy_tl-21
- sma sunny_boy_tlst-21
- sma sunny_tripower_tl-10
- sma sunny_tripower_tl-30
Classification
- Weakness
-
- CWE-256 Plaintext Storage of a Password
References
Sources
- CVE List CVE-2017-9856
- NVD CVE-2017-9856
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