EPSS score history for CVE-2021-20404, showing historical risk changes and exploitation probability trends for vulnerability prioritization and security analysis.
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.31% | 0.90% | +0.59% |
| 2 | 2025-03-30 | 0.47% | 0.31% | -0.16% |
| 3 | 2025-03-29 | 0.31% | 0.47% | +0.16% |
| 4 | 2025-03-17 | 0.08% | 0.31% | +0.23% |
| 5 | 2023-03-07 | 0.89% | 0.08% | -0.81% |
| 6 | 2022-04-01 | 4.50% | 0.89% | -3.61% |
| 7 | 2022-02-04 | 21.74% | 4.50% | -17.24% |
| 8 | 2022-01-06 | 5.83% | 21.74% | +15.91% |
| 9 | 2021-04-14 | — | 5.83% | — |