EPSS score history for CVE-2021-20840, 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 | 0.67% | 1.24% | +0.57% |
| 2 | 2025-11-21 | 0.51% | 0.67% | +0.16% |
| 3 | 2025-11-18 | 0.67% | 0.51% | -0.16% |
| 4 | 2025-03-30 | 17.25% | 0.67% | -16.58% |
| 5 | 2025-03-29 | 0.67% | 17.25% | +16.58% |
| 6 | 2025-03-24 | 6.96% | 0.67% | -6.29% |
| 7 | 2025-03-23 | 0.67% | 6.96% | +6.29% |
| 8 | 2025-03-17 | 0.13% | 0.67% | +0.54% |
| 9 | 2024-12-17 | 0.17% | 0.13% | -0.04% |
| 10 | 2024-06-30 | 0.12% | 0.17% | +0.05% |
| 11 | 2023-03-07 | 1.14% | 0.12% | -1.02% |
| 12 | 2022-04-01 | 3.28% | 1.14% | -2.15% |
| 13 | 2022-02-04 | 4.53% | 3.28% | -1.24% |
| 14 | 2022-01-06 | 1.05% | 4.53% | +3.48% |
| 15 | 2021-11-25 | — | 1.05% | — |