CVE-2019-9921 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 | 0.26% | 1.13% | +0.87% |
| 2 | 2026-04-03 | 0.22% | 0.26% | +0.04% |
| 3 | 2025-03-30 | 0.42% | 0.22% | -0.21% |
| 4 | 2025-03-29 | 0.22% | 0.42% | +0.21% |
| 5 | 2025-03-17 | 0.06% | 0.22% | +0.16% |
| 6 | 2023-03-07 | 0.89% | 0.06% | -0.83% |
| 7 | 2022-04-01 | 9.03% | 0.89% | -8.14% |
| 8 | 2022-02-04 | 2.74% | 9.03% | +6.29% |
| 9 | 2022-01-06 | 0.62% | 2.74% | +2.12% |
| 10 | 2021-04-14 | — | 0.62% | — |