An issue was discovered in SMA Solar Technology products. The SMAdata2+ communication protocol does not properly use authentication with encryption: it is vulnerable to man in the middle, packet injection, and replay attacks. Any setting change, authentication packet, scouting packet, etc. can be replayed, injected, or used for a man in the middle session. All functionalities available in Sunny Explorer can effectively be done from anywhere within the network as long as an attacker gets the packet setup correctly. This includes the authentication process for all (including hidden) access levels and the changing of settings in accordance with the gained access rights. Furthermore, because the SMAdata2+ communication channel is unencrypted, an attacker capable of understanding the protocol can eavesdrop on communications. NOTE: the vendor's position is that authentication with encryption is not required on an isolated subnetwork. Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected
総合評価: CVE-2017-9857 は中リスク（49.7/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.69%、48 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.12% | 0.69% | +0.57% |
| 2 | 2025-03-30 | 0.17% | 0.12% | -0.05% |
| 3 | 2025-03-29 | — | 0.17% | — |
EPSS の全履歴 （全 6 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.1 | 3.0 | HIGH |
|
2.2 | 5.9 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| sma | sunny_boy_3600_firmware | — | cpe:2.3:o:sma:sunny_boy_3600_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_5000_firmware | — | cpe:2.3:o:sma:sunny_boy_5000_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_tripower_core1_firmware | — | cpe:2.3:o:sma:sunny_tripower_core1_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_tripower_15000tl_firmware | — | cpe:2.3:o:sma:sunny_tripower_15000tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_tripower_20000tl_firmware | — | cpe:2.3:o:sma:sunny_tripower_20000tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_tripower_25000tl_firmware | — | cpe:2.3:o:sma:sunny_tripower_25000tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_tripower_5000tl_firmware | — | cpe:2.3:o:sma:sunny_tripower_5000tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_tripower_12000tl_firmware | — | cpe:2.3:o:sma:sunny_tripower_12000tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_tripower_60_firmware | — | cpe:2.3:o:sma:sunny_tripower_60_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_3000tl_firmware | — | cpe:2.3:o:sma:sunny_boy_3000tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_3600tl_firmware | — | cpe:2.3:o:sma:sunny_boy_3600tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_4000tl_firmware | — | cpe:2.3:o:sma:sunny_boy_4000tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_5000tl_firmware | — | cpe:2.3:o:sma:sunny_boy_5000tl_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_1.5_firmware | — | cpe:2.3:o:sma:sunny_boy_1.5_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_2.5_firmware | — | cpe:2.3:o:sma:sunny_boy_2.5_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_3.0_firmware | — | cpe:2.3:o:sma:sunny_boy_3.0_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_3.6_firmware | — | cpe:2.3:o:sma:sunny_boy_3.6_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_4.0_firmware | — | cpe:2.3:o:sma:sunny_boy_4.0_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_5.0_firmware | — | cpe:2.3:o:sma:sunny_boy_5.0_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_2200_firmware | — | cpe:2.3:o:sma:sunny_central_2200_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_1000cp_xt_firmware | — | cpe:2.3:o:sma:sunny_central_1000cp_xt_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_800cp_xt_firmware | — | cpe:2.3:o:sma:sunny_central_800cp_xt_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_850cp_xt_firmware | — | cpe:2.3:o:sma:sunny_central_850cp_xt_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_900cp_xt_firmware | — | cpe:2.3:o:sma:sunny_central_900cp_xt_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_500cp_xt_firmware | — | cpe:2.3:o:sma:sunny_central_500cp_xt_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_630cp_xt_firmware | — | cpe:2.3:o:sma:sunny_central_630cp_xt_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_720cp_xt_firmware | — | cpe:2.3:o:sma:sunny_central_720cp_xt_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_760cp_xt_firmware | — | cpe:2.3:o:sma:sunny_central_760cp_xt_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_500_firmware | — | cpe:2.3:o:sma:sunny_central_storage_500_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_630_firmware | — | cpe:2.3:o:sma:sunny_central_storage_630_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_720_firmware | — | cpe:2.3:o:sma:sunny_central_storage_720_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_760_firmware | — | cpe:2.3:o:sma:sunny_central_storage_760_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_800_firmware | — | cpe:2.3:o:sma:sunny_central_storage_800_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_850_firmware | — | cpe:2.3:o:sma:sunny_central_storage_850_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_900_firmware | — | cpe:2.3:o:sma:sunny_central_storage_900_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_1000_firmware | — | cpe:2.3:o:sma:sunny_central_storage_1000_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_2200_firmware | — | cpe:2.3:o:sma:sunny_central_storage_2200_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_central_storage_2500-ev_firmware | — | cpe:2.3:o:sma:sunny_central_storage_2500-ev_firmware:-:*:*:*:*:*:*:* |
| sma | sunny_boy_storage_2.5_firmware | — | cpe:2.3:o:sma:sunny_boy_storage_2.5_firmware:-:*:*:*:*:*:*:* |