EPSS score history for CVE-2021-28809, 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 | 2026-06-24 | 15.68% | 15.80% | +0.12% |
| 2 | 2026-06-15 | 0.58% | 15.68% | +15.10% |
| 3 | 2025-11-21 | 0.42% | 0.58% | +0.16% |
| 4 | 2025-11-18 | 0.58% | 0.42% | -0.16% |
| 5 | 2025-03-30 | 1.38% | 0.58% | -0.80% |
| 6 | 2025-03-29 | 0.58% | 1.38% | +0.80% |
| 7 | 2025-03-17 | 0.79% | 0.58% | -0.22% |
| 8 | 2025-01-15 | 0.60% | 0.79% | +0.19% |
| 9 | 2024-02-12 | 0.50% | 0.60% | +0.10% |
| 10 | 2023-12-08 | 0.41% | 0.50% | +0.09% |
| 11 | 2023-06-07 | 0.29% | 0.41% | +0.12% |
| 12 | 2023-03-07 | 0.89% | 0.29% | -0.59% |
| 13 | 2022-04-01 | 9.03% | 0.89% | -8.14% |
| 14 | 2022-02-04 | 2.74% | 9.03% | +6.29% |
| 15 | 2022-01-06 | 0.62% | 2.74% | +2.12% |
| 16 | 2021-07-09 | 0.42% | 0.62% | +0.21% |
| 17 | 2021-07-08 | — | 0.42% | — |