EPSS score history for CVE-2021-4166, 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 | 0.35% | 1.59% | +1.23% |
| 2 | 2026-01-20 | 0.22% | 0.35% | +0.13% |
| 3 | 2025-11-21 | 0.63% | 0.22% | -0.41% |
| 4 | 2025-11-18 | 0.17% | 0.63% | +0.46% |
| 5 | 2025-05-09 | 0.26% | 0.17% | -0.08% |
| 6 | 2025-03-30 | 1.00% | 0.26% | -0.75% |
| 7 | 2025-03-29 | 0.26% | 1.00% | +0.75% |
| 8 | 2025-03-17 | 0.06% | 0.26% | +0.19% |
| 9 | 2023-03-07 | 1.54% | 0.06% | -1.47% |
| 10 | 2022-05-17 | 1.11% | 1.54% | +0.43% |
| 11 | 2022-03-15 | 1.02% | 1.11% | +0.09% |
| 12 | 2022-02-04 | 1.25% | 1.02% | -0.23% |
| 13 | 2022-01-24 | 1.04% | 1.25% | +0.21% |
| 14 | 2022-01-16 | 0.83% | 1.04% | +0.21% |
| 15 | 2022-01-07 | 0.62% | 0.83% | +0.21% |
| 16 | 2021-12-26 | — | 0.62% | — |