For the Central Licensing Server component used in ABB products ABB Ability™ System 800xA and related system extensions versions 5.1, 6.0 and 6.1, Compact HMI versions 5.1 and 6.0, Control Builder Safe 1.0, 1.1 and 2.0, Symphony Plus -S+ Operations 3.0 to 3.2 Symphony Plus -S+ Engineering 1.1 to 2.2, Composer Harmony 5.1, 6.0 and 6.1, Melody Composer 5.3, 6.1/6.2 and SPE for Melody 1.0SPx (Composer 6.3), Harmony OPC Server (HAOPC) Standalone 6.0, 6.1 and 7.0, ABB Ability™ System 800xA/ Advant® OCS Control Builder A 1.3 and 1.4, Advant® OCS AC100 OPC Server 5.1, 6.0 and 6.1, Composer CTK 6.1 and 6.2, AdvaBuild 3.7 SP1 and SP2, OPCServer for MOD 300 (non-800xA) 1.4, OPC Data Link 2.1 and 2.2, Knowledge Manager 8.0, 9.0 and 9.1, Manufacturing Operations Management 1812 and 1909, ABB AbilityTM SCADAvantage versions 5.1 to 5.6.5, a weakness in validation of input exists that allows an attacker to block license handling by sending specially crafted messages to the CLS web service.
総合評価: CVE-2020-8475 は中リスク（43.8/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 1.12%、62 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 | 0.23% | 1.12% | +0.89% |
| 2 | 2026-03-30 | 0.34% | 0.23% | -0.11% |
| 3 | 2025-11-21 | — | 0.34% | — |
EPSS の全履歴 （全 12 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 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:-:*:*:*:*:*:* |
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:feature_pack_4:*:*:*:*:*:* |
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:feature_pack_4_revision_d:*:*:*:*:*:* |
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:revision_a:*:*:*:*:*:* |
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:revision_b:*:*:*:*:*:* |
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:revision_c:*:*:*:*:*:* |
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:revision_d:*:*:*:*:*:* |
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:revision_e:*:*:*:*:*:* |
| abb | 800xa_system | 5.1 | cpe:2.3:a:abb:800xa_system:5.1:revision_e_feature_pack_4:*:*:*:*:*:* |
| abb | 800xa_system | 6.0 | cpe:2.3:a:abb:800xa_system:6.0:*:*:*:*:*:*:* |
| abb | 800xa_system | 6.0.1 | cpe:2.3:a:abb:800xa_system:6.0.1:*:*:*:*:*:*:* |
| abb | 800xa_system | 6.0.3 | cpe:2.3:a:abb:800xa_system:6.0.3:*:*:*:*:*:*:* |
| abb | 800xa_system | 6.0.3.3 | cpe:2.3:a:abb:800xa_system:6.0.3.3:*:*:*:*:*:*:* |
| abb | 800xa_system | 6.1 | cpe:2.3:a:abb:800xa_system:6.1:*:*:*:*:*:*:* |
| abb | compact_hmi | 5.1 | cpe:2.3:a:abb:compact_hmi:5.1:-:*:*:*:*:*:* |
| abb | compact_hmi | 5.1 | cpe:2.3:a:abb:compact_hmi:5.1:feature_pack_4_revision_d:*:*:*:*:*:* |
| abb | compact_hmi | 5.1 | cpe:2.3:a:abb:compact_hmi:5.1:revision_b:*:*:*:*:*:* |
| abb | compact_hmi | 5.1 | cpe:2.3:a:abb:compact_hmi:5.1:revision_d:*:*:*:*:*:* |
| abb | compact_hmi | 6.0.1-1 | cpe:2.3:a:abb:compact_hmi:6.0.1-1:*:*:*:*:*:*:* |
| abb | compact_hmi | 6.0.3-2 | cpe:2.3:a:abb:compact_hmi:6.0.3-2:*:*:*:*:*:*:* |
| abb | control_builder_safe | 1.0 | cpe:2.3:a:abb:control_builder_safe:1.0:*:*:*:*:*:*:* |
| abb | control_builder_safe | 1.1 | cpe:2.3:a:abb:control_builder_safe:1.1:*:*:*:*:*:*:* |
| abb | control_builder_safe | 2.0 | cpe:2.3:a:abb:control_builder_safe:2.0:*:*:*:*:*:*:* |