EPSS score history for CVE-2020-21998, 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 | 1.38% | 1.32% | -0.06% |
| 2 | 2026-03-20 | 1.24% | 1.38% | +0.13% |
| 3 | 2026-03-12 | 1.74% | 1.24% | -0.50% |
| 4 | 2026-03-07 | 2.38% | 1.74% | -0.65% |
| 5 | 2026-03-06 | 1.96% | 2.38% | +0.42% |
| 6 | 2025-12-20 | 2.28% | 1.96% | -0.32% |
| 7 | 2025-12-06 | 2.95% | 2.28% | -0.67% |
| 8 | 2025-11-21 | 8.67% | 2.95% | -5.72% |
| 9 | 2025-11-18 | 3.95% | 8.67% | +4.72% |
| 10 | 2025-11-04 | 3.06% | 3.95% | +0.89% |
| 11 | 2025-11-02 | 3.55% | 3.06% | -0.48% |
| 12 | 2025-10-30 | 3.90% | 3.55% | -0.35% |
| 13 | 2025-10-17 | 6.58% | 3.90% | -2.68% |
| 14 | 2025-10-09 | 0.21% | 6.58% | +6.37% |
| 15 | 2025-01-12 | 0.07% | 0.21% | +0.14% |
| 16 | 2023-03-07 | 0.89% | 0.07% | -0.82% |
| 17 | 2022-04-01 | 2.56% | 0.89% | -1.68% |
| 18 | 2022-02-04 | 2.91% | 2.56% | -0.35% |
| 19 | 2022-01-06 | 0.66% | 2.91% | +2.25% |
| 20 | 2021-04-29 | 0.66% | 0.66% | +0.00% |
| 21 | 2021-04-28 | — | 0.66% | — |