EPSS score history for CVE-2021-39864, 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 | 1.00% | 1.57% | +0.57% |
| 2 | 2026-03-02 | 0.86% | 1.00% | +0.13% |
| 3 | 2025-11-21 | 1.00% | 0.86% | -0.13% |
| 4 | 2025-11-18 | 0.86% | 1.00% | +0.13% |
| 5 | 2025-03-30 | 0.72% | 0.86% | +0.14% |
| 6 | 2025-03-29 | 0.86% | 0.72% | -0.14% |
| 7 | 2025-03-19 | 1.06% | 0.86% | -0.19% |
| 8 | 2025-03-17 | 0.06% | 1.06% | +1.00% |
| 9 | 2023-03-07 | 1.05% | 0.06% | -0.99% |
| 10 | 2022-04-01 | 7.39% | 1.05% | -6.35% |
| 11 | 2022-02-04 | 11.27% | 7.39% | -3.88% |
| 12 | 2022-01-06 | 2.75% | 11.27% | +8.52% |
| 13 | 2021-10-22 | 0.42% | 2.75% | +2.34% |
| 14 | 2021-10-16 | — | 0.42% | — |