CVE-2015-8921 の EPSS スコア履歴で、リスクの推移と悪用確率の変化を示します。優先度付けとセキュリティ分析に利用できます。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-05-13 | 5.00% | 4.25% | -0.75% |
| 2 | 2026-01-14 | 4.32% | 5.00% | +0.69% |
| 3 | 2025-12-28 | 3.66% | 4.32% | +0.66% |
| 4 | 2025-12-27 | 4.32% | 3.66% | -0.66% |
| 5 | 2025-11-07 | 4.37% | 4.32% | -0.06% |
| 6 | 2025-10-28 | 3.71% | 4.37% | +0.66% |
| 7 | 2025-10-27 | 4.37% | 3.71% | -0.66% |
| 8 | 2025-10-01 | 3.66% | 4.37% | +0.71% |
| 9 | 2025-03-30 | 4.81% | 3.66% | -1.15% |
| 10 | 2025-03-29 | 3.66% | 4.81% | +1.15% |
| 11 | 2025-03-17 | 7.73% | 3.66% | -4.07% |
| 12 | 2024-12-17 | 4.71% | 7.73% | +3.01% |
| 13 | 2023-12-22 | 4.19% | 4.71% | +0.52% |
| 14 | 2023-10-03 | 3.59% | 4.19% | +0.60% |
| 15 | 2023-08-24 | 3.38% | 3.59% | +0.21% |
| 16 | 2023-07-12 | 2.85% | 3.38% | +0.54% |
| 17 | 2023-03-07 | 2.17% | 2.85% | +0.67% |
| 18 | 2022-02-04 | — | 2.17% | — |