EPSS score history for CVE-2021-20448, 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 | 0.14% | 0.50% | +0.35% |
| 2 | 2025-11-21 | 0.18% | 0.14% | -0.04% |
| 3 | 2025-11-18 | 0.14% | 0.18% | +0.04% |
| 4 | 2025-05-08 | 0.19% | 0.14% | -0.05% |
| 5 | 2025-03-30 | 0.28% | 0.19% | -0.09% |
| 6 | 2025-03-29 | 0.19% | 0.28% | +0.09% |
| 7 | 2025-03-25 | 0.05% | 0.19% | +0.14% |
| 8 | 2023-03-07 | 0.89% | 0.05% | -0.83% |
| 9 | 2022-04-01 | 2.56% | 0.89% | -1.68% |
| 10 | 2022-02-04 | 73.02% | 2.56% | -70.46% |
| 11 | 2022-01-06 | 37.62% | 73.02% | +35.40% |
| 12 | 2021-05-04 | 0.66% | 37.62% | +36.96% |
| 13 | 2021-04-29 | 0.66% | 0.66% | +0.00% |
| 14 | 2021-04-28 | — | 0.66% | — |