CVE-2021-26421 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 | 1.67% | 1.41% | -0.26% |
| 2 | 2026-02-08 | 0.78% | 1.67% | +0.89% |
| 3 | 2025-11-21 | 0.53% | 0.78% | +0.25% |
| 4 | 2025-11-18 | 0.78% | 0.53% | -0.25% |
| 5 | 2025-10-02 | 0.58% | 0.78% | +0.20% |
| 6 | 2025-03-30 | 0.94% | 0.58% | -0.36% |
| 7 | 2025-03-29 | 0.58% | 0.94% | +0.36% |
| 8 | 2025-03-25 | 0.46% | 0.58% | +0.12% |
| 9 | 2025-03-19 | 0.41% | 0.46% | +0.05% |
| 10 | 2025-03-17 | 0.18% | 0.41% | +0.24% |
| 11 | 2024-12-17 | 0.09% | 0.18% | +0.08% |
| 12 | 2023-08-02 | 0.28% | 0.09% | -0.18% |
| 13 | 2023-06-21 | 0.16% | 0.28% | +0.12% |
| 14 | 2023-03-07 | 2.63% | 0.16% | -2.48% |
| 15 | 2022-11-27 | 2.43% | 2.63% | +0.20% |
| 16 | 2022-07-30 | 2.25% | 2.43% | +0.18% |
| 17 | 2022-04-01 | 9.13% | 2.25% | -6.88% |
| 18 | 2022-02-04 | 17.64% | 9.13% | -8.51% |
| 19 | 2022-01-06 | 4.56% | 17.64% | +13.08% |
| 20 | 2021-05-19 | 0.42% | 4.56% | +4.14% |
| 21 | 2021-05-12 | — | 0.42% | — |