EPSS score history for CVE-2021-4448, 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 | 2026-07-23 | 1.34% | 1.38% | +0.04% |
| 2 | 2026-06-15 | 44.82% | 1.34% | -43.48% |
| 3 | 2026-06-09 | 47.95% | 44.82% | -3.13% |
| 4 | 2026-06-04 | 50.92% | 47.95% | -2.97% |
| 5 | 2026-05-28 | 48.90% | 50.92% | +2.02% |
| 6 | 2026-03-07 | 42.34% | 48.90% | +6.56% |
| 7 | 2026-01-18 | 43.63% | 42.34% | -1.29% |
| 8 | 2025-12-31 | 0.32% | 43.63% | +43.31% |
| 9 | 2025-11-24 | 1.00% | 0.32% | -0.69% |
| 10 | 2025-11-21 | 1.53% | 1.00% | -0.52% |
| 11 | 2025-11-18 | 1.00% | 1.53% | +0.52% |
| 12 | 2025-09-15 | 0.76% | 1.00% | +0.24% |
| 13 | 2025-08-12 | 0.48% | 0.76% | +0.28% |
| 14 | 2025-08-02 | 0.38% | 0.48% | +0.09% |
| 15 | 2025-07-12 | 0.27% | 0.38% | +0.11% |
| 16 | 2025-06-21 | 0.19% | 0.27% | +0.09% |
| 17 | 2025-03-30 | 1.80% | 0.19% | -1.61% |
| 18 | 2025-03-29 | 0.19% | 1.80% | +1.61% |
| 19 | 2025-03-26 | 0.15% | 0.19% | +0.04% |
| 20 | 2025-03-24 | 1.43% | 0.15% | -1.28% |
| 21 | 2025-03-23 | 0.09% | 1.43% | +1.34% |
| 22 | 2024-10-31 | 0.05% | 0.09% | +0.04% |
| 23 | 2024-10-17 | — | 0.05% | — |