EPSS score history for CVE-2021-3420, 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 | 0.14% | 2.10% | +1.97% |
| 2 | 2026-04-13 | 0.23% | 0.14% | -0.09% |
| 3 | 2025-11-21 | 0.67% | 0.23% | -0.44% |
| 4 | 2025-11-18 | 0.23% | 0.67% | +0.44% |
| 5 | 2025-10-09 | 0.29% | 0.23% | -0.06% |
| 6 | 2025-03-30 | 0.56% | 0.29% | -0.27% |
| 7 | 2025-03-29 | 0.29% | 0.56% | +0.28% |
| 8 | 2024-12-17 | 0.61% | 0.29% | -0.32% |
| 9 | 2023-11-19 | 0.44% | 0.61% | +0.17% |
| 10 | 2023-11-08 | 0.16% | 0.44% | +0.28% |
| 11 | 2023-03-07 | 1.02% | 0.16% | -0.86% |
| 12 | 2022-04-01 | 15.35% | 1.02% | -14.33% |
| 13 | 2022-02-04 | 4.50% | 15.35% | +10.85% |
| 14 | 2022-01-06 | 1.04% | 4.50% | +3.46% |
| 15 | 2021-04-14 | — | 1.04% | — |