CVE-2011-2921 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 | 72.98% | 82.83% | +9.85% |
| 2 | 2026-04-21 | 71.59% | 72.98% | +1.38% |
| 3 | 2025-03-30 | 72.95% | 71.59% | -1.36% |
| 4 | 2025-03-29 | 71.59% | 72.95% | +1.36% |
| 5 | 2025-03-17 | 95.40% | 71.59% | -23.81% |
| 6 | 2025-02-10 | 94.85% | 95.40% | +0.55% |
| 7 | 2025-01-23 | 96.22% | 94.85% | -1.38% |
| 8 | 2024-12-17 | 54.47% | 96.22% | +41.75% |
| 9 | 2024-11-30 | 58.04% | 54.47% | -3.57% |
| 10 | 2024-11-12 | 57.87% | 58.04% | +0.17% |
| 11 | 2024-10-28 | 55.44% | 57.87% | +2.42% |
| 12 | 2024-10-10 | 53.32% | 55.44% | +2.12% |
| 13 | 2024-09-08 | 31.16% | 53.32% | +22.16% |
| 14 | 2024-08-05 | 24.68% | 31.16% | +6.48% |
| 15 | 2024-07-16 | 26.06% | 24.68% | -1.38% |
| 16 | 2024-05-17 | 32.72% | 26.06% | -6.66% |
| 17 | 2024-04-01 | 35.80% | 32.72% | -3.09% |
| 18 | 2023-09-08 | 30.40% | 35.80% | +5.41% |
| 19 | 2023-08-06 | 19.33% | 30.40% | +11.07% |
| 20 | 2023-07-19 | 12.27% | 19.33% | +7.06% |
| 21 | 2023-04-24 | 10.88% | 12.27% | +1.38% |
| 22 | 2023-03-07 | 83.01% | 10.88% | -72.12% |
| 23 | 2022-02-04 | — | 83.01% | — |