EPSS score history for CVE-2021-21906, 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 | 0.38% | 0.97% | +0.59% |
| 2 | 2026-05-15 | 0.27% | 0.38% | +0.11% |
| 3 | 2025-11-02 | 0.22% | 0.27% | +0.05% |
| 4 | 2025-04-21 | 0.35% | 0.22% | -0.13% |
| 5 | 2025-03-30 | 0.62% | 0.35% | -0.26% |
| 6 | 2025-03-29 | 0.45% | 0.62% | +0.17% |
| 7 | 2025-03-17 | 0.15% | 0.45% | +0.30% |
| 8 | 2024-12-17 | 0.08% | 0.15% | +0.07% |
| 9 | 2023-03-07 | 0.89% | 0.08% | -0.80% |
| 10 | 2022-02-04 | 0.42% | 0.89% | +0.47% |
| 11 | 2021-12-23 | — | 0.42% | — |