EPSS score history for CVE-2021-27921, 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 | 0.42% | 3.17% | +2.75% |
| 2 | 2025-12-24 | 0.79% | 0.42% | -0.37% |
| 3 | 2025-11-21 | 5.02% | 0.79% | -4.23% |
| 4 | 2025-11-18 | 0.79% | 5.02% | +4.23% |
| 5 | 2025-10-11 | 0.60% | 0.79% | +0.19% |
| 6 | 2025-08-22 | 0.52% | 0.60% | +0.09% |
| 7 | 2025-08-17 | 0.60% | 0.52% | -0.09% |
| 8 | 2025-08-15 | 0.16% | 0.60% | +0.45% |
| 9 | 2025-06-26 | 0.49% | 0.16% | -0.33% |
| 10 | 2025-06-25 | 0.44% | 0.49% | +0.05% |
| 11 | 2025-06-15 | 0.33% | 0.44% | +0.10% |
| 12 | 2025-03-30 | 1.13% | 0.33% | -0.80% |
| 13 | 2025-03-29 | 0.33% | 1.13% | +0.80% |
| 14 | 2025-03-17 | 0.41% | 0.33% | -0.08% |
| 15 | 2024-12-21 | 0.35% | 0.41% | +0.07% |
| 16 | 2024-12-17 | 0.17% | 0.35% | +0.18% |
| 17 | 2023-03-07 | 1.02% | 0.17% | -0.85% |
| 18 | 2022-04-01 | 7.18% | 1.02% | -6.16% |
| 19 | 2022-02-04 | 6.60% | 7.18% | +0.58% |
| 20 | 2022-01-06 | 1.55% | 6.60% | +5.05% |
| 21 | 2021-07-15 | 1.29% | 1.55% | +0.26% |
| 22 | 2021-04-14 | — | 1.29% | — |