CVE-2011-1921 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 | 4.04% | 5.99% | +1.96% |
| 2 | 2025-12-28 | 5.14% | 4.04% | -1.10% |
| 3 | 2025-12-27 | 4.04% | 5.14% | +1.10% |
| 4 | 2025-12-07 | 4.42% | 4.04% | -0.38% |
| 5 | 2025-10-28 | 4.87% | 4.42% | -0.45% |
| 6 | 2025-10-27 | 4.42% | 4.87% | +0.45% |
| 7 | 2025-10-01 | 4.87% | 4.42% | -0.45% |
| 8 | 2025-07-11 | 3.64% | 4.87% | +1.22% |
| 9 | 2025-03-30 | 5.61% | 3.64% | -1.96% |
| 10 | 2025-03-29 | 3.64% | 5.61% | +1.96% |
| 11 | 2025-03-19 | 2.85% | 3.64% | +0.79% |
| 12 | 2025-03-17 | 0.17% | 2.85% | +2.68% |
| 13 | 2023-03-07 | 7.34% | 0.17% | -7.17% |
| 14 | 2023-02-13 | 5.24% | 7.34% | +2.10% |
| 15 | 2023-02-03 | 7.34% | 5.24% | -2.10% |
| 16 | 2022-02-04 | — | 7.34% | — |