EPSS score history for CVE-2021-20721, 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 | 0.68% | 1.52% | +0.85% |
| 2 | 2025-11-21 | 0.93% | 0.68% | -0.26% |
| 3 | 2025-11-18 | 0.68% | 0.93% | +0.26% |
| 4 | 2025-03-30 | 1.62% | 0.68% | -0.94% |
| 5 | 2025-03-29 | 0.68% | 1.62% | +0.94% |
| 6 | 2025-03-17 | 0.28% | 0.68% | +0.39% |
| 7 | 2024-12-17 | 0.63% | 0.28% | -0.34% |
| 8 | 2023-08-11 | 0.41% | 0.63% | +0.21% |
| 9 | 2023-03-07 | 1.05% | 0.41% | -0.64% |
| 10 | 2022-04-01 | 9.03% | 1.05% | -7.97% |
| 11 | 2022-02-04 | 3.43% | 9.03% | +5.60% |
| 12 | 2022-01-06 | 0.78% | 3.43% | +2.64% |
| 13 | 2021-05-20 | — | 0.78% | — |