EPSS score history for CVE-2021-1539, 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 | 0.29% | 1.09% | +0.81% |
| 2 | 2025-03-30 | 0.69% | 0.29% | -0.40% |
| 3 | 2025-03-29 | 0.29% | 0.69% | +0.40% |
| 4 | 2025-03-25 | 0.20% | 0.29% | +0.08% |
| 5 | 2025-03-17 | 0.38% | 0.20% | -0.18% |
| 6 | 2025-02-19 | 0.54% | 0.38% | -0.16% |
| 7 | 2023-08-27 | 0.33% | 0.54% | +0.21% |
| 8 | 2023-05-20 | 0.16% | 0.33% | +0.17% |
| 9 | 2023-03-07 | 1.05% | 0.16% | -0.89% |
| 10 | 2022-04-01 | 9.03% | 1.05% | -7.97% |
| 11 | 2022-02-04 | 2.30% | 9.03% | +6.72% |
| 12 | 2022-01-06 | 0.52% | 2.30% | +1.78% |
| 13 | 2021-06-05 | — | 0.52% | — |