EPSS score history for CVE-2021-28909, 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 | 2026-07-03 | 1.35% | 1.39% | +0.05% |
| 2 | 2026-06-15 | 1.76% | 1.35% | -0.42% |
| 3 | 2025-07-21 | 1.35% | 1.76% | +0.42% |
| 4 | 2025-03-30 | 4.71% | 1.35% | -3.37% |
| 5 | 2025-03-29 | 1.35% | 4.71% | +3.37% |
| 6 | 2025-03-17 | 0.25% | 1.35% | +1.09% |
| 7 | 2024-12-17 | 0.20% | 0.25% | +0.05% |
| 8 | 2023-03-07 | 0.89% | 0.20% | -0.69% |
| 9 | 2022-04-01 | 10.85% | 0.89% | -9.97% |
| 10 | 2022-02-04 | 1.95% | 10.85% | +8.90% |
| 11 | 2022-01-06 | 0.44% | 1.95% | +1.51% |
| 12 | 2021-09-10 | — | 0.44% | — |