EPSS score history for CVE-2021-4407, 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 | 0.17% | 0.34% | +0.18% |
| 2 | 2026-05-08 | 0.11% | 0.17% | +0.05% |
| 3 | 2025-11-21 | 0.17% | 0.11% | -0.05% |
| 4 | 2025-11-18 | 0.15% | 0.17% | +0.02% |
| 5 | 2025-03-30 | 0.92% | 0.15% | -0.77% |
| 6 | 2025-03-29 | 0.15% | 0.92% | +0.77% |
| 7 | 2025-03-24 | 0.33% | 0.15% | -0.18% |
| 8 | 2025-03-23 | 0.15% | 0.33% | +0.18% |
| 9 | 2025-03-17 | 0.05% | 0.15% | +0.10% |
| 10 | 2024-12-17 | 0.16% | 0.05% | -0.11% |
| 11 | 2024-10-16 | 0.08% | 0.16% | +0.07% |
| 12 | 2023-07-12 | — | 0.08% | — |