CVE-2018-20721 的 EPSS 分数历史，展示风险变化与利用概率趋势，支持漏洞优先级与安全分析。
| # | 日期 | 旧 EPSS 分数 | 新 EPSS 分数 | 变化（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.53% | 2.05% | +1.52% |
| 2 | 2025-11-21 | 0.65% | 0.53% | -0.12% |
| 3 | 2025-11-18 | 0.54% | 0.65% | +0.11% |
| 4 | 2025-03-30 | 2.04% | 0.54% | -1.49% |
| 5 | 2025-03-29 | 0.54% | 2.04% | +1.49% |
| 6 | 2025-03-17 | 0.26% | 0.54% | +0.29% |
| 7 | 2024-06-08 | 0.18% | 0.26% | +0.07% |
| 8 | 2023-03-07 | 1.04% | 0.18% | -0.86% |
| 9 | 2021-12-01 | 0.83% | 1.04% | +0.21% |
| 10 | 2021-04-14 | — | 0.83% | — |