EPSS score history for CVE-2021-21777, 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 | 0.34% | 1.67% | +1.33% |
| 2 | 2025-08-26 | 0.44% | 0.34% | -0.10% |
| 3 | 2025-05-06 | 0.50% | 0.44% | -0.07% |
| 4 | 2025-03-30 | 1.05% | 0.50% | -0.55% |
| 5 | 2025-03-29 | 0.50% | 1.05% | +0.55% |
| 6 | 2025-03-17 | 0.68% | 0.50% | -0.18% |
| 7 | 2025-03-04 | 0.57% | 0.68% | +0.11% |
| 8 | 2025-01-29 | 0.47% | 0.57% | +0.11% |
| 9 | 2024-12-17 | 0.37% | 0.47% | +0.10% |
| 10 | 2024-10-20 | 0.34% | 0.37% | +0.02% |
| 11 | 2024-05-09 | 0.35% | 0.34% | -0.01% |
| 12 | 2024-01-22 | 0.27% | 0.35% | +0.08% |
| 13 | 2023-03-07 | 0.89% | 0.27% | -0.61% |
| 14 | 2022-04-01 | 9.03% | 0.89% | -8.14% |
| 15 | 2022-02-04 | 1.84% | 9.03% | +7.19% |
| 16 | 2022-01-06 | 0.42% | 1.84% | +1.42% |
| 17 | 2021-06-19 | — | 0.42% | — |