EPSS score history for CVE-2021-22156, 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 | 0.89% | 1.80% | +0.91% |
| 2 | 2026-02-25 | 1.28% | 0.89% | -0.39% |
| 3 | 2025-11-21 | 1.10% | 1.28% | +0.18% |
| 4 | 2025-11-18 | 1.28% | 1.10% | -0.18% |
| 5 | 2025-10-22 | 0.65% | 1.28% | +0.62% |
| 6 | 2025-06-15 | 0.89% | 0.65% | -0.23% |
| 7 | 2025-03-30 | 2.44% | 0.89% | -1.55% |
| 8 | 2025-03-29 | 0.89% | 2.44% | +1.55% |
| 9 | 2025-03-17 | 0.34% | 0.89% | +0.54% |
| 10 | 2025-01-04 | 0.35% | 0.34% | -0.01% |
| 11 | 2024-12-20 | 0.34% | 0.35% | +0.01% |
| 12 | 2024-12-17 | 0.36% | 0.34% | -0.01% |
| 13 | 2024-07-23 | 0.33% | 0.36% | +0.03% |
| 14 | 2023-03-07 | 1.44% | 0.33% | -1.11% |
| 15 | 2022-04-01 | 19.46% | 1.44% | -18.02% |
| 16 | 2022-02-04 | 5.83% | 19.46% | +13.63% |
| 17 | 2022-01-06 | 1.36% | 5.83% | +4.47% |
| 18 | 2021-08-19 | 0.91% | 1.36% | +0.45% |
| 19 | 2021-08-18 | — | 0.91% | — |