EPSS score history for CVE-2021-31439, 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 | 1.03% | 2.33% | +1.30% |
| 2 | 2026-03-04 | 0.43% | 1.03% | +0.61% |
| 3 | 2026-03-01 | 1.03% | 0.43% | -0.61% |
| 4 | 2026-02-04 | 0.43% | 1.03% | +0.61% |
| 5 | 2026-02-01 | 1.03% | 0.43% | -0.61% |
| 6 | 2026-01-04 | 0.43% | 1.03% | +0.61% |
| 7 | 2026-01-01 | 1.03% | 0.43% | -0.61% |
| 8 | 2025-12-04 | 0.43% | 1.03% | +0.61% |
| 9 | 2025-12-01 | 1.03% | 0.43% | -0.61% |
| 10 | 2025-11-21 | 4.74% | 1.03% | -3.70% |
| 11 | 2025-11-18 | 1.03% | 4.74% | +3.70% |
| 12 | 2025-11-04 | 0.43% | 1.03% | +0.61% |
| 13 | 2025-11-01 | 1.03% | 0.43% | -0.61% |
| 14 | 2025-10-04 | 0.43% | 1.03% | +0.61% |
| 15 | 2025-10-01 | 1.03% | 0.43% | -0.61% |
| 16 | 2025-09-04 | 0.43% | 1.03% | +0.61% |
| 17 | 2025-09-01 | 1.03% | 0.43% | -0.61% |
| 18 | 2025-08-04 | 0.43% | 1.03% | +0.61% |
| 19 | 2025-08-01 | 1.03% | 0.43% | -0.61% |
| 20 | 2025-07-30 | 0.73% | 1.03% | +0.30% |
| 21 | 2025-07-18 | 0.40% | 0.73% | +0.33% |
| 22 | 2025-07-17 | 0.73% | 0.40% | -0.33% |
| 23 | 2025-07-07 | 0.85% | 0.73% | -0.12% |
| 24 | 2025-07-04 | 0.47% | 0.85% | +0.38% |
| 25 | 2025-07-01 | 0.85% | 0.47% | -0.38% |
| 26 | 2025-06-19 | 0.75% | 0.85% | +0.10% |
| 27 | 2025-06-04 | 0.41% | 0.75% | +0.34% |
| 28 | 2025-06-01 | 0.75% | 0.41% | -0.34% |
| 29 | 2025-05-09 | 0.90% | 0.75% | -0.15% |
| 30 | 2025-05-05 | 0.49% | 0.90% | +0.40% |
| 31 | 2025-05-01 | 0.90% | 0.49% | -0.40% |
| 32 | 2025-04-19 | 0.82% | 0.90% | +0.08% |
| 33 | 2025-04-13 | 0.45% | 0.82% | +0.37% |
| 34 | 2025-04-12 | 0.82% | 0.45% | -0.37% |
| 35 | 2025-04-01 | 0.45% | 0.82% | +0.37% |
| 36 | 2025-03-31 | 0.82% | 0.45% | -0.37% |
| 37 | 2025-03-30 | 8.43% | 0.82% | -7.61% |
| 38 | 2025-03-29 | 0.82% | 8.43% | +7.61% |
| 39 | 2025-03-27 | 0.45% | 0.82% | +0.37% |
| 40 | 2025-03-26 | 0.82% | 0.45% | -0.37% |
| 41 | 2025-03-24 | 0.45% | 0.82% | +0.37% |
| 42 | 2025-03-23 | 0.82% | 0.45% | -0.37% |
| 43 | 2025-03-17 | 0.97% | 0.82% | -0.15% |
| 44 | 2024-12-17 | 0.15% | 0.97% | +0.81% |
| 45 | 2023-12-26 | 0.13% | 0.15% | +0.03% |
| 46 | 2023-11-23 | 0.18% | 0.13% | -0.05% |
| 47 | 2023-05-17 | 0.06% | 0.18% | +0.12% |
| 48 | 2023-03-07 | 1.00% | 0.06% | -0.95% |
| 49 | 2022-04-01 | 2.68% | 1.00% | -1.68% |
| 50 | 2022-02-04 | 4.73% | 2.68% | -2.05% |
| 51 | 2022-01-06 | 1.09% | 4.73% | +3.64% |
| 52 | 2021-05-22 | — | 1.09% | — |