EPSS score history for CVE-2021-31979, 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 | 6.21% | 2.61% | -3.60% |
| 2 | 2026-06-10 | 5.31% | 6.21% | +0.91% |
| 3 | 2026-06-04 | 7.03% | 5.31% | -1.73% |
| 4 | 2026-05-22 | 7.36% | 7.03% | -0.33% |
| 5 | 2026-05-08 | 8.07% | 7.36% | -0.71% |
| 6 | 2026-04-29 | 10.50% | 8.07% | -2.43% |
| 7 | 2026-03-17 | 12.64% | 10.50% | -2.14% |
| 8 | 2026-03-08 | 13.48% | 12.64% | -0.83% |
| 9 | 2026-03-05 | 12.46% | 13.48% | +1.01% |
| 10 | 2026-02-09 | 14.37% | 12.46% | -1.90% |
| 11 | 2025-12-28 | 19.62% | 14.37% | -5.25% |
| 12 | 2025-12-27 | 14.37% | 19.62% | +5.25% |
| 13 | 2025-11-21 | 7.69% | 14.37% | +6.68% |
| 14 | 2025-11-18 | 14.37% | 7.69% | -6.68% |
| 15 | 2025-10-31 | 6.14% | 14.37% | +8.23% |
| 16 | 2025-10-30 | 1.54% | 6.14% | +4.60% |
| 17 | 2025-10-28 | 1.67% | 1.54% | -0.14% |
| 18 | 2025-10-27 | 1.54% | 1.67% | +0.14% |
| 19 | 2025-10-22 | 1.10% | 1.54% | +0.44% |
| 20 | 2025-10-21 | 1.79% | 1.10% | -0.69% |
| 21 | 2025-10-17 | 1.03% | 1.79% | +0.76% |
| 22 | 2025-03-30 | 2.69% | 1.03% | -1.66% |
| 23 | 2025-03-29 | 1.03% | 2.69% | +1.66% |
| 24 | 2025-03-25 | 0.70% | 1.03% | +0.33% |
| 25 | 2025-03-19 | 0.55% | 0.70% | +0.16% |
| 26 | 2025-03-17 | 0.74% | 0.55% | -0.20% |
| 27 | 2025-02-08 | 0.54% | 0.74% | +0.20% |
| 28 | 2025-01-21 | 0.07% | 0.54% | +0.47% |
| 29 | 2024-12-02 | 0.42% | 0.07% | -0.34% |
| 30 | 2024-11-16 | 0.09% | 0.42% | +0.33% |
| 31 | 2024-08-30 | 0.52% | 0.09% | -0.43% |
| 32 | 2024-08-16 | 0.11% | 0.52% | +0.40% |
| 33 | 2024-07-31 | 0.84% | 0.11% | -0.73% |
| 34 | 2024-07-17 | 0.11% | 0.84% | +0.73% |
| 35 | 2024-06-19 | 1.94% | 0.11% | -1.83% |
| 36 | 2024-06-05 | 0.18% | 1.94% | +1.76% |
| 37 | 2024-05-22 | 2.42% | 0.18% | -2.24% |
| 38 | 2024-05-09 | 0.13% | 2.42% | +2.29% |
| 39 | 2024-04-24 | 0.41% | 0.13% | -0.28% |
| 40 | 2024-04-12 | 0.07% | 0.41% | +0.34% |
| 41 | 2023-12-29 | 0.05% | 0.07% | +0.02% |
| 42 | 2023-03-07 | 1.15% | 0.05% | -1.10% |
| 43 | 2022-04-01 | 1.37% | 1.15% | -0.22% |
| 44 | 2022-02-04 | 17.64% | 1.37% | -16.27% |
| 45 | 2022-01-06 | 4.56% | 17.64% | +13.08% |
| 46 | 2021-07-17 | 0.42% | 4.56% | +4.14% |
| 47 | 2021-07-15 | — | 0.42% | — |