EPSS score history for CVE-2021-21830, 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 | 2025-11-21 | 3.11% | 2.27% | -0.84% |
| 2 | 2025-11-18 | 2.27% | 3.11% | +0.84% |
| 3 | 2025-10-26 | 3.67% | 2.27% | -1.41% |
| 4 | 2025-08-13 | 2.04% | 3.67% | +1.64% |
| 5 | 2025-08-12 | 1.83% | 2.04% | +0.21% |
| 6 | 2025-06-01 | 1.88% | 1.83% | -0.05% |
| 7 | 2025-04-21 | 1.79% | 1.88% | +0.09% |
| 8 | 2025-03-30 | 4.35% | 1.79% | -2.55% |
| 9 | 2025-03-29 | 1.79% | 4.35% | +2.55% |
| 10 | 2025-03-17 | 0.52% | 1.79% | +1.28% |
| 11 | 2024-12-17 | 0.69% | 0.52% | -0.18% |
| 12 | 2024-12-16 | 0.61% | 0.69% | +0.08% |
| 13 | 2024-05-24 | 0.51% | 0.61% | +0.10% |
| 14 | 2024-03-19 | 0.39% | 0.51% | +0.12% |
| 15 | 2023-03-07 | 1.16% | 0.39% | -0.76% |
| 16 | 2022-04-01 | 15.36% | 1.16% | -14.21% |
| 17 | 2022-02-04 | 3.99% | 15.36% | +11.37% |
| 18 | 2022-01-06 | 0.92% | 3.99% | +3.07% |
| 19 | 2021-08-14 | — | 0.92% | — |