EPSS score history for CVE-2021-4397, 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% | 0.33% | +0.15% |
| 2 | 2026-04-27 | 0.12% | 0.17% | +0.06% |
| 3 | 2025-11-21 | 0.16% | 0.12% | -0.05% |
| 4 | 2025-11-18 | 0.12% | 0.16% | +0.05% |
| 5 | 2025-09-18 | 0.15% | 0.12% | -0.03% |
| 6 | 2025-03-30 | 0.95% | 0.15% | -0.80% |
| 7 | 2025-03-29 | 0.15% | 0.95% | +0.80% |
| 8 | 2025-03-24 | 0.34% | 0.15% | -0.19% |
| 9 | 2025-03-23 | 0.15% | 0.34% | +0.19% |
| 10 | 2025-03-17 | 0.05% | 0.15% | +0.10% |
| 11 | 2024-12-17 | 0.16% | 0.05% | -0.11% |
| 12 | 2024-10-05 | 0.08% | 0.16% | +0.07% |
| 13 | 2023-07-01 | — | 0.08% | — |