EPSS score history for CVE-2021-20167, 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 | 84.61% | 8.46% | -76.15% |
| 2 | 2026-05-16 | 79.42% | 84.61% | +5.19% |
| 3 | 2026-02-11 | 81.81% | 79.42% | -2.39% |
| 4 | 2026-01-18 | 79.42% | 81.81% | +2.39% |
| 5 | 2025-12-18 | 81.63% | 79.42% | -2.21% |
| 6 | 2025-11-21 | 77.92% | 81.63% | +3.71% |
| 7 | 2025-11-18 | 81.63% | 77.92% | -3.71% |
| 8 | 2025-08-27 | 82.24% | 81.63% | -0.61% |
| 9 | 2025-08-21 | 82.62% | 82.24% | -0.38% |
| 10 | 2025-08-20 | 83.01% | 82.62% | -0.39% |
| 11 | 2025-03-30 | 85.48% | 83.01% | -2.47% |
| 12 | 2025-03-29 | 83.01% | 85.48% | +2.47% |
| 13 | 2025-03-28 | 89.29% | 83.01% | -6.28% |
| 14 | 2025-03-27 | 90.30% | 89.29% | -1.01% |
| 15 | 2025-03-26 | 89.31% | 90.30% | +0.99% |
| 16 | 2025-03-24 | 90.30% | 89.31% | -0.99% |
| 17 | 2025-03-23 | 89.31% | 90.30% | +0.99% |
| 18 | 2025-03-18 | 90.30% | 89.31% | -0.99% |
| 19 | 2025-03-17 | 93.81% | 90.30% | -3.51% |
| 20 | 2024-12-18 | 94.58% | 93.81% | -0.78% |
| 21 | 2024-12-17 | 94.11% | 94.58% | +0.47% |
| 22 | 2024-10-10 | 94.78% | 94.11% | -0.68% |
| 23 | 2023-12-15 | 95.49% | 94.78% | -0.71% |
| 24 | 2023-11-16 | 95.28% | 95.49% | +0.21% |
| 25 | 2023-10-19 | 95.11% | 95.28% | +0.17% |
| 26 | 2023-08-21 | 95.19% | 95.11% | -0.08% |
| 27 | 2023-07-23 | 95.51% | 95.19% | -0.32% |
| 28 | 2023-07-10 | 95.75% | 95.51% | -0.24% |
| 29 | 2023-05-16 | 96.00% | 95.75% | -0.25% |
| 30 | 2023-03-12 | 96.00% | 96.00% | +0.00% |
| 31 | 2023-03-11 | 96.64% | 96.00% | -0.64% |
| 32 | 2023-03-07 | 1.00% | 96.64% | +95.63% |
| 33 | 2022-02-04 | 0.42% | 1.00% | +0.59% |
| 34 | 2021-12-31 | — | 0.42% | — |