EPSS score history for CVE-2021-38646, 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 | 2026-07-09 | 4.04% | 4.40% | +0.36% |
| 2 | 2026-06-15 | 50.93% | 4.04% | -46.89% |
| 3 | 2026-03-20 | 42.73% | 50.93% | +8.20% |
| 4 | 2026-02-06 | 36.25% | 42.73% | +6.48% |
| 5 | 2025-11-21 | 44.35% | 36.25% | -8.09% |
| 6 | 2025-11-18 | 36.25% | 44.35% | +8.09% |
| 7 | 2025-10-31 | 65.96% | 36.25% | -29.71% |
| 8 | 2025-10-22 | 64.94% | 65.96% | +1.02% |
| 9 | 2025-08-14 | 66.34% | 64.94% | -1.41% |
| 10 | 2025-06-28 | 66.22% | 66.34% | +0.12% |
| 11 | 2025-06-11 | 68.88% | 66.22% | -2.66% |
| 12 | 2025-03-30 | 83.97% | 68.88% | -15.09% |
| 13 | 2025-03-29 | 66.87% | 83.97% | +17.10% |
| 14 | 2025-03-27 | 47.11% | 66.87% | +19.76% |
| 15 | 2025-03-24 | 66.87% | 47.11% | -19.76% |
| 16 | 2025-03-23 | 47.11% | 66.87% | +19.76% |
| 17 | 2025-03-19 | 42.38% | 47.11% | +4.73% |
| 18 | 2025-03-17 | 5.88% | 42.38% | +36.50% |
| 19 | 2025-03-07 | 4.91% | 5.88% | +0.97% |
| 20 | 2025-02-18 | 5.15% | 4.91% | -0.24% |
| 21 | 2025-01-18 | 5.80% | 5.15% | -0.65% |
| 22 | 2025-01-01 | 23.65% | 5.80% | -17.85% |
| 23 | 2024-12-17 | 30.41% | 23.65% | -6.76% |
| 24 | 2024-12-02 | 43.86% | 30.41% | -13.45% |
| 25 | 2024-11-16 | 33.04% | 43.86% | +10.82% |
| 26 | 2024-11-01 | 60.75% | 33.04% | -27.71% |
| 27 | 2024-10-18 | 23.88% | 60.75% | +36.86% |
| 28 | 2024-10-02 | 29.61% | 23.88% | -5.73% |
| 29 | 2024-09-18 | 19.32% | 29.61% | +10.29% |
| 30 | 2024-09-03 | 36.82% | 19.32% | -17.49% |
| 31 | 2024-08-21 | 17.92% | 36.82% | +18.89% |
| 32 | 2024-08-07 | 19.38% | 17.92% | -1.45% |
| 33 | 2024-07-24 | 25.69% | 19.38% | -6.31% |
| 34 | 2024-07-11 | 18.29% | 25.69% | +7.39% |
| 35 | 2024-06-26 | 39.06% | 18.29% | -20.77% |
| 36 | 2024-06-14 | 21.24% | 39.06% | +17.82% |
| 37 | 2024-05-31 | 16.19% | 21.24% | +5.05% |
| 38 | 2024-05-18 | 20.04% | 16.19% | -3.85% |
| 39 | 2024-05-05 | 14.40% | 20.04% | +5.64% |
| 40 | 2024-04-21 | 33.12% | 14.40% | -18.72% |
| 41 | 2024-04-09 | 15.38% | 33.12% | +17.74% |
| 42 | 2024-03-26 | 12.40% | 15.38% | +2.98% |
| 43 | 2024-03-13 | 47.89% | 12.40% | -35.49% |
| 44 | 2024-02-28 | 25.26% | 47.89% | +22.63% |
| 45 | 2024-02-15 | 44.97% | 25.26% | -19.71% |
| 46 | 2024-02-01 | 36.09% | 44.97% | +8.88% |
| 47 | 2024-01-17 | 26.06% | 36.09% | +10.03% |
| 48 | 2024-01-05 | 32.52% | 26.06% | -6.46% |
| 49 | 2023-12-29 | 0.95% | 32.52% | +31.57% |
| 50 | 2023-12-20 | 1.49% | 0.95% | -0.54% |
| 51 | 2023-12-08 | 1.30% | 1.49% | +0.19% |
| 52 | 2023-11-09 | 0.88% | 1.30% | +0.42% |
| 53 | 2023-10-26 | 0.76% | 0.88% | +0.12% |
| 54 | 2023-10-12 | 1.05% | 0.76% | -0.29% |
| 55 | 2023-08-31 | 0.92% | 1.05% | +0.13% |
| 56 | 2023-08-02 | 1.12% | 0.92% | -0.20% |
| 57 | 2023-07-19 | 0.98% | 1.12% | +0.14% |
| 58 | 2023-04-23 | 0.95% | 0.98% | +0.03% |
| 59 | 2023-04-08 | 0.84% | 0.95% | +0.11% |
| 60 | 2023-03-07 | 1.65% | 0.84% | -0.81% |
| 61 | 2022-12-04 | 1.53% | 1.65% | +0.12% |
| 62 | 2022-04-01 | 12.76% | 1.53% | -11.23% |
| 63 | 2022-02-04 | 32.21% | 12.76% | -19.45% |
| 64 | 2022-01-06 | 9.57% | 32.21% | +22.63% |
| 65 | 2021-09-25 | 0.92% | 9.57% | +8.66% |
| 66 | 2021-09-16 | — | 0.92% | — |