EPSS score history for CVE-2009-4420, 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 | 2.65% | 2.22% | -0.43% |
| 2 | 2026-05-15 | 2.97% | 2.65% | -0.32% |
| 3 | 2025-03-30 | 1.86% | 2.97% | +1.11% |
| 4 | 2025-03-29 | 2.97% | 1.86% | -1.11% |
| 5 | 2025-03-19 | 3.82% | 2.97% | -0.85% |
| 6 | 2025-03-17 | 2.48% | 3.82% | +1.34% |
| 7 | 2024-12-17 | 3.47% | 2.48% | -0.99% |
| 8 | 2024-06-23 | 3.84% | 3.47% | -0.37% |
| 9 | 2024-03-28 | 4.58% | 3.84% | -0.74% |
| 10 | 2023-03-07 | 1.32% | 4.58% | +3.26% |
| 11 | 2022-02-04 | — | 1.32% | — |