EPSS score history for CVE-2021-4228, 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 | 0.77% | 9.95% | +9.17% |
| 2 | 2025-12-27 | 1.21% | 0.77% | -0.44% |
| 3 | 2025-11-30 | 1.47% | 1.21% | -0.27% |
| 4 | 2025-11-29 | 1.84% | 1.47% | -0.37% |
| 5 | 2025-11-21 | 0.09% | 1.84% | +1.75% |
| 6 | 2025-11-18 | 1.84% | 0.09% | -1.75% |
| 7 | 2025-10-25 | 2.45% | 1.84% | -0.61% |
| 8 | 2025-08-20 | 2.30% | 2.45% | +0.15% |
| 9 | 2025-07-19 | 2.10% | 2.30% | +0.20% |
| 10 | 2025-03-30 | 2.66% | 2.10% | -0.55% |
| 11 | 2025-03-29 | 2.10% | 2.66% | +0.55% |
| 12 | 2025-03-19 | 0.89% | 2.10% | +1.21% |
| 13 | 2025-03-17 | 0.06% | 0.89% | +0.83% |
| 14 | 2023-03-07 | 0.89% | 0.06% | -0.83% |
| 15 | 2022-10-25 | — | 0.89% | — |