EPSS score history for CVE-2020-4427, 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 | 92.74% | 70.03% | -22.71% |
| 2 | 2026-03-11 | 91.15% | 92.74% | +1.59% |
| 3 | 2026-03-10 | 90.34% | 91.15% | +0.80% |
| 4 | 2025-12-16 | 92.74% | 90.34% | -2.40% |
| 5 | 2025-12-13 | 92.32% | 92.74% | +0.42% |
| 6 | 2025-12-12 | 91.83% | 92.32% | +0.49% |
| 7 | 2025-12-10 | 91.19% | 91.83% | +0.64% |
| 8 | 2025-11-23 | 91.83% | 91.19% | -0.64% |
| 9 | 2025-11-21 | 84.09% | 91.83% | +7.74% |
| 10 | 2025-11-18 | 91.83% | 84.09% | -7.74% |
| 11 | 2025-11-05 | 92.14% | 91.83% | -0.31% |
| 12 | 2025-10-22 | 89.92% | 92.14% | +2.22% |
| 13 | 2025-10-17 | 89.01% | 89.92% | +0.91% |
| 14 | 2025-10-13 | 55.75% | 89.01% | +33.26% |
| 15 | 2025-10-09 | 51.01% | 55.75% | +4.74% |
| 16 | 2025-07-25 | 49.18% | 51.01% | +1.83% |
| 17 | 2025-05-09 | 52.31% | 49.18% | -3.14% |
| 18 | 2025-03-30 | 64.38% | 52.31% | -12.07% |
| 19 | 2025-03-29 | 45.94% | 64.38% | +18.44% |
| 20 | 2025-03-17 | 26.70% | 45.94% | +19.24% |
| 21 | 2025-02-08 | 2.91% | 26.70% | +23.79% |
| 22 | 2024-12-17 | 2.47% | 2.91% | +0.44% |
| 23 | 2024-05-31 | 2.58% | 2.47% | -0.11% |
| 24 | 2024-04-14 | 1.83% | 2.58% | +0.74% |
| 25 | 2024-02-09 | 1.41% | 1.83% | +0.42% |
| 26 | 2024-01-23 | 1.00% | 1.41% | +0.41% |
| 27 | 2023-03-07 | 1.05% | 1.00% | -0.06% |
| 28 | 2022-04-01 | 9.03% | 1.05% | -7.97% |
| 29 | 2022-02-04 | 67.44% | 9.03% | -58.42% |
| 30 | 2022-01-06 | 31.59% | 67.44% | +35.86% |
| 31 | 2021-04-14 | — | 31.59% | — |