CVE-2018-20021 的 EPSS 分數歷史，展示風險變化與利用機率趨勢，支援漏洞優先級與安全分析。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.55% | 3.52% | +0.96% |
| 2 | 2025-11-21 | 3.04% | 2.55% | -0.49% |
| 3 | 2025-11-18 | 2.64% | 3.04% | +0.40% |
| 4 | 2025-03-30 | 3.76% | 2.64% | -1.12% |
| 5 | 2025-03-29 | 2.64% | 3.76% | +1.12% |
| 6 | 2025-03-17 | 0.88% | 2.64% | +1.76% |
| 7 | 2025-02-13 | 0.79% | 0.88% | +0.10% |
| 8 | 2024-12-17 | 1.05% | 0.79% | -0.26% |
| 9 | 2024-05-11 | 1.47% | 1.05% | -0.42% |
| 10 | 2023-12-13 | 1.58% | 1.47% | -0.11% |
| 11 | 2023-03-07 | 1.54% | 1.58% | +0.04% |
| 12 | 2022-02-04 | 2.68% | 1.54% | -1.14% |
| 13 | 2021-04-14 | — | 2.68% | — |