EPSS score history for CVE-2021-4039, 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 | 71.70% | 71.05% | -0.66% |
| 2 | 2026-05-24 | 68.36% | 71.70% | +3.35% |
| 3 | 2026-05-12 | 62.80% | 68.36% | +5.55% |
| 4 | 2026-04-28 | 60.89% | 62.80% | +1.92% |
| 5 | 2026-03-10 | 69.77% | 60.89% | -8.88% |
| 6 | 2025-11-21 | 64.70% | 69.77% | +5.06% |
| 7 | 2025-11-18 | 69.77% | 64.70% | -5.06% |
| 8 | 2025-10-27 | 80.64% | 69.77% | -10.87% |
| 9 | 2025-06-14 | 82.66% | 80.64% | -2.02% |
| 10 | 2025-06-04 | 83.48% | 82.66% | -0.82% |
| 11 | 2025-03-30 | 87.41% | 83.48% | -3.93% |
| 12 | 2025-03-29 | 83.48% | 87.41% | +3.93% |
| 13 | 2025-03-17 | 6.57% | 83.48% | +76.91% |
| 14 | 2025-01-21 | 7.56% | 6.57% | -0.99% |
| 15 | 2025-01-07 | 6.31% | 7.56% | +1.24% |
| 16 | 2024-12-17 | 13.05% | 6.31% | -6.74% |
| 17 | 2024-12-10 | 11.55% | 13.05% | +1.50% |
| 18 | 2024-11-14 | 9.35% | 11.55% | +2.20% |
| 19 | 2024-11-01 | 9.68% | 9.35% | -0.34% |
| 20 | 2024-10-05 | 8.17% | 9.68% | +1.51% |
| 21 | 2024-09-23 | 6.91% | 8.17% | +1.25% |
| 22 | 2024-08-27 | 5.66% | 6.91% | +1.25% |
| 23 | 2024-07-17 | 4.85% | 5.66% | +0.81% |
| 24 | 2024-06-20 | 5.94% | 4.85% | -1.09% |
| 25 | 2024-03-27 | 4.35% | 5.94% | +1.59% |
| 26 | 2024-01-29 | 3.11% | 4.35% | +1.23% |
| 27 | 2024-01-02 | 2.22% | 3.11% | +0.89% |
| 28 | 2023-10-07 | 1.93% | 2.22% | +0.29% |
| 29 | 2023-09-22 | 1.83% | 1.93% | +0.10% |
| 30 | 2023-08-12 | 1.47% | 1.83% | +0.36% |
| 31 | 2023-07-30 | 0.70% | 1.47% | +0.77% |
| 32 | 2023-03-08 | 0.45% | 0.70% | +0.25% |
| 33 | 2023-03-07 | 8.38% | 0.45% | -7.93% |
| 34 | 2022-11-15 | 2.05% | 8.38% | +6.33% |
| 35 | 2022-07-15 | 8.38% | 2.05% | -6.33% |
| 36 | 2022-04-20 | 2.05% | 8.38% | +6.33% |
| 37 | 2022-03-09 | 1.00% | 2.05% | +1.05% |
| 38 | 2022-03-01 | — | 1.00% | — |