EPSS score history for CVE-2021-39503, 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 | 2026-07-01 | 2.73% | 2.82% | +0.09% |
| 2 | 2026-06-15 | 3.28% | 2.73% | -0.55% |
| 3 | 2025-11-21 | 3.43% | 3.28% | -0.15% |
| 4 | 2025-11-18 | 3.28% | 3.43% | +0.15% |
| 5 | 2025-03-30 | 9.68% | 3.28% | -6.39% |
| 6 | 2025-03-29 | 3.28% | 9.68% | +6.39% |
| 7 | 2025-03-17 | 0.70% | 3.28% | +2.58% |
| 8 | 2024-12-17 | 0.48% | 0.70% | +0.23% |
| 9 | 2023-03-31 | 0.39% | 0.48% | +0.08% |
| 10 | 2023-03-07 | 1.98% | 0.39% | -1.58% |
| 11 | 2022-04-01 | 23.85% | 1.98% | -21.87% |
| 12 | 2022-02-04 | 5.88% | 23.85% | +17.96% |
| 13 | 2022-01-06 | 1.37% | 5.88% | +4.51% |
| 14 | 2021-09-08 | — | 1.37% | — |