CVE-2020-17521 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 | 2.43% | 1.05% | -1.38% |
| 2 | 2026-03-21 | 1.79% | 2.43% | +0.64% |
| 3 | 2026-03-04 | 0.37% | 1.79% | +1.42% |
| 4 | 2026-03-01 | 1.79% | 0.37% | -1.42% |
| 5 | 2026-02-04 | 0.37% | 1.79% | +1.42% |
| 6 | 2026-02-01 | 1.79% | 0.37% | -1.42% |
| 7 | 2026-01-04 | 0.37% | 1.79% | +1.42% |
| 8 | 2026-01-01 | 1.79% | 0.37% | -1.42% |
| 9 | 2025-12-04 | 0.37% | 1.79% | +1.42% |
| 10 | 2025-12-01 | 1.79% | 0.37% | -1.42% |
| 11 | 2025-11-28 | 0.37% | 1.79% | +1.42% |
| 12 | 2025-11-24 | 0.50% | 0.37% | -0.12% |
| 13 | 2025-11-23 | 0.36% | 0.50% | +0.14% |
| 14 | 2025-11-21 | 0.69% | 0.36% | -0.34% |
| 15 | 2025-11-18 | 0.36% | 0.69% | +0.34% |
| 16 | 2025-03-30 | 0.58% | 0.36% | -0.23% |
| 17 | 2025-03-29 | 0.36% | 0.58% | +0.23% |
| 18 | 2025-03-17 | 0.05% | 0.36% | +0.31% |
| 19 | 2023-03-07 | 3.81% | 0.05% | -3.76% |
| 20 | 2022-04-01 | 11.58% | 3.81% | -7.76% |
| 21 | 2022-02-04 | 22.19% | 11.58% | -10.61% |
| 22 | 2022-01-06 | 5.98% | 22.19% | +16.21% |
| 23 | 2021-10-21 | 5.41% | 5.98% | +0.57% |
| 24 | 2021-07-21 | 4.83% | 5.41% | +0.58% |
| 25 | 2021-06-15 | 4.25% | 4.83% | +0.58% |
| 26 | 2021-04-27 | 3.06% | 4.25% | +1.18% |
| 27 | 2021-04-14 | — | 3.06% | — |