EPSS score history for CVE-2021-1538, 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 | 1.71% | 1.81% | +0.10% |
| 2 | 2026-06-06 | 1.98% | 1.71% | -0.27% |
| 3 | 2025-03-30 | 5.29% | 1.98% | -3.31% |
| 4 | 2025-03-29 | 1.98% | 5.29% | +3.31% |
| 5 | 2025-03-19 | 0.84% | 1.98% | +1.14% |
| 6 | 2025-03-17 | 0.16% | 0.84% | +0.68% |
| 7 | 2023-03-07 | 1.16% | 0.16% | -1.00% |
| 8 | 2022-04-01 | 15.36% | 1.16% | -14.21% |
| 9 | 2022-02-04 | 3.99% | 15.36% | +11.37% |
| 10 | 2022-01-06 | 0.92% | 3.99% | +3.07% |
| 11 | 2021-06-05 | — | 0.92% | — |