EPSS score history for CVE-2021-4399, 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 | 0.15% | 0.37% | +0.22% |
| 2 | 2026-04-21 | 0.12% | 0.15% | +0.03% |
| 3 | 2025-11-21 | 0.22% | 0.12% | -0.10% |
| 4 | 2025-11-18 | 0.12% | 0.22% | +0.10% |
| 5 | 2025-09-18 | 0.28% | 0.12% | -0.16% |
| 6 | 2025-03-30 | 1.74% | 0.28% | -1.47% |
| 7 | 2025-03-29 | 0.28% | 1.74% | +1.47% |
| 8 | 2025-03-24 | 0.63% | 0.28% | -0.35% |
| 9 | 2025-03-23 | 0.28% | 0.63% | +0.35% |
| 10 | 2025-03-17 | 0.49% | 0.28% | -0.21% |
| 11 | 2025-02-05 | 0.36% | 0.49% | +0.13% |
| 12 | 2024-10-05 | 0.27% | 0.36% | +0.09% |
| 13 | 2024-07-07 | 0.08% | 0.27% | +0.18% |
| 14 | 2023-07-01 | — | 0.08% | — |