EPSS score history for CVE-2021-20021, 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 | 91.22% | 83.43% | -7.79% |
| 2 | 2026-05-09 | 91.74% | 91.22% | -0.53% |
| 3 | 2026-02-22 | 89.55% | 91.74% | +2.19% |
| 4 | 2026-02-21 | 90.15% | 89.55% | -0.61% |
| 5 | 2025-12-25 | 90.69% | 90.15% | -0.54% |
| 6 | 2025-11-25 | 90.91% | 90.69% | -0.22% |
| 7 | 2025-11-21 | 92.12% | 90.91% | -1.21% |
| 8 | 2025-11-18 | 90.45% | 92.12% | +1.67% |
| 9 | 2025-11-11 | 91.87% | 90.45% | -1.41% |
| 10 | 2025-10-22 | 92.36% | 91.87% | -0.50% |
| 11 | 2025-10-18 | 92.68% | 92.36% | -0.31% |
| 12 | 2025-10-17 | 92.17% | 92.68% | +0.51% |
| 13 | 2025-09-27 | 84.95% | 92.17% | +7.22% |
| 14 | 2025-06-11 | 80.71% | 84.95% | +4.24% |
| 15 | 2025-03-30 | 90.71% | 80.71% | -10.00% |
| 16 | 2025-03-29 | 80.71% | 90.71% | +10.00% |
| 17 | 2025-03-28 | 90.71% | 80.71% | -10.00% |
| 18 | 2025-03-27 | 87.22% | 90.71% | +3.49% |
| 19 | 2025-03-20 | 90.71% | 87.22% | -3.49% |
| 20 | 2025-03-19 | 85.48% | 90.71% | +5.23% |
| 21 | 2025-03-17 | 0.68% | 85.48% | +84.79% |
| 22 | 2024-12-17 | 0.99% | 0.68% | -0.30% |
| 23 | 2024-03-15 | 0.87% | 0.99% | +0.11% |
| 24 | 2024-02-16 | 0.62% | 0.87% | +0.25% |
| 25 | 2024-02-07 | 0.90% | 0.62% | -0.28% |
| 26 | 2023-09-22 | 0.62% | 0.90% | +0.27% |
| 27 | 2023-03-09 | 0.80% | 0.62% | -0.18% |
| 28 | 2023-03-07 | 0.89% | 0.80% | -0.09% |
| 29 | 2022-04-01 | 9.03% | 0.89% | -8.14% |
| 30 | 2022-02-04 | 1.84% | 9.03% | +7.19% |
| 31 | 2022-01-06 | 0.42% | 1.84% | +1.42% |
| 32 | 2021-04-14 | — | 0.42% | — |