CVE-2009-0921 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 | 2026-06-15 | 30.29% | 13.24% | -17.05% |
| 2 | 2026-05-15 | 35.96% | 30.29% | -5.67% |
| 3 | 2025-03-30 | 20.22% | 35.96% | +15.74% |
| 4 | 2025-03-29 | 35.96% | 20.22% | -15.74% |
| 5 | 2025-03-17 | 7.12% | 35.96% | +28.84% |
| 6 | 2024-12-17 | 5.63% | 7.12% | +1.49% |
| 7 | 2023-12-13 | 7.03% | 5.63% | -1.41% |
| 8 | 2023-11-02 | 5.49% | 7.03% | +1.54% |
| 9 | 2023-09-22 | 6.06% | 5.49% | -0.57% |
| 10 | 2023-06-27 | 8.57% | 6.06% | -2.51% |
| 11 | 2023-03-07 | 33.87% | 8.57% | -25.29% |
| 12 | 2022-07-18 | 11.27% | 33.87% | +22.60% |
| 13 | 2022-07-17 | 33.87% | 11.27% | -22.60% |
| 14 | 2022-02-04 | — | 33.87% | — |