EPSS score history for CVE-2021-4191, 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 | 91.22% | 80.00% | -11.22% |
| 2 | 2026-06-08 | 92.38% | 91.22% | -1.16% |
| 3 | 2026-06-05 | 92.05% | 92.38% | +0.32% |
| 4 | 2026-04-26 | 92.26% | 92.05% | -0.21% |
| 5 | 2026-04-20 | 92.36% | 92.26% | -0.10% |
| 6 | 2026-03-16 | 92.72% | 92.36% | -0.36% |
| 7 | 2026-03-14 | 92.91% | 92.72% | -0.18% |
| 8 | 2026-03-04 | 92.22% | 92.91% | +0.68% |
| 9 | 2026-03-01 | 92.91% | 92.22% | -0.68% |
| 10 | 2026-02-04 | 92.22% | 92.91% | +0.68% |
| 11 | 2026-02-01 | 92.91% | 92.22% | -0.68% |
| 12 | 2026-01-17 | 92.77% | 92.91% | +0.13% |
| 13 | 2026-01-04 | 91.88% | 92.77% | +0.89% |
| 14 | 2026-01-01 | 92.77% | 91.88% | -0.89% |
| 15 | 2025-12-28 | 92.86% | 92.77% | -0.09% |
| 16 | 2025-12-09 | 92.67% | 92.86% | +0.19% |
| 17 | 2025-12-04 | 91.92% | 92.67% | +0.75% |
| 18 | 2025-12-01 | 92.67% | 91.92% | -0.75% |
| 19 | 2025-11-21 | 82.36% | 92.67% | +10.31% |
| 20 | 2025-11-18 | 92.53% | 82.36% | -10.17% |
| 21 | 2025-11-04 | 91.72% | 92.53% | +0.81% |
| 22 | 2025-11-01 | 92.53% | 91.72% | -0.81% |
| 23 | 2025-10-25 | 93.00% | 92.53% | -0.47% |
| 24 | 2025-10-12 | 93.63% | 93.00% | -0.63% |
| 25 | 2025-10-04 | 93.19% | 93.63% | +0.44% |
| 26 | 2025-10-01 | 93.63% | 93.19% | -0.44% |
| 27 | 2025-09-26 | 93.34% | 93.63% | +0.28% |
| 28 | 2025-09-04 | 92.54% | 93.34% | +0.80% |
| 29 | 2025-09-01 | 93.18% | 92.54% | -0.64% |
| 30 | 2025-08-04 | 92.54% | 93.18% | +0.64% |
| 31 | 2025-08-01 | 93.16% | 92.54% | -0.62% |
| 32 | 2025-07-04 | 92.39% | 93.16% | +0.77% |
| 33 | 2025-07-01 | 93.16% | 92.39% | -0.77% |
| 34 | 2025-06-29 | 93.35% | 93.16% | -0.18% |
| 35 | 2025-06-07 | 93.39% | 93.35% | -0.04% |
| 36 | 2025-06-04 | 92.74% | 93.39% | +0.65% |
| 37 | 2025-06-01 | 93.39% | 92.74% | -0.65% |
| 38 | 2025-05-21 | 93.53% | 93.39% | -0.14% |
| 39 | 2025-05-15 | 93.39% | 93.53% | +0.14% |
| 40 | 2025-05-10 | 93.66% | 93.39% | -0.27% |
| 41 | 2025-05-04 | 93.27% | 93.66% | +0.40% |
| 42 | 2025-05-01 | 93.66% | 93.27% | -0.40% |
| 43 | 2025-04-15 | 93.55% | 93.66% | +0.11% |
| 44 | 2025-03-30 | 93.68% | 93.55% | -0.13% |
| 45 | 2025-03-29 | 93.45% | 93.68% | +0.23% |
| 46 | 2025-03-28 | 93.56% | 93.45% | -0.11% |
| 47 | 2025-03-27 | 93.45% | 93.56% | +0.11% |
| 48 | 2025-03-26 | 93.66% | 93.45% | -0.21% |
| 49 | 2025-03-24 | 93.45% | 93.66% | +0.21% |
| 50 | 2025-03-23 | 93.66% | 93.45% | -0.21% |
| 51 | 2025-03-20 | 93.45% | 93.66% | +0.21% |
| 52 | 2025-03-19 | 93.66% | 93.45% | -0.21% |
| 53 | 2025-03-18 | 93.45% | 93.66% | +0.21% |
| 54 | 2025-03-17 | 52.33% | 93.45% | +41.12% |
| 55 | 2024-12-17 | 58.10% | 52.33% | -5.77% |
| 56 | 2024-12-11 | 66.52% | 58.10% | -8.41% |
| 57 | 2024-11-15 | 77.45% | 66.52% | -10.93% |
| 58 | 2024-11-01 | 76.22% | 77.45% | +1.23% |
| 59 | 2024-10-20 | 73.82% | 76.22% | +2.39% |
| 60 | 2024-10-06 | 76.83% | 73.82% | -3.01% |
| 61 | 2024-09-09 | 73.99% | 76.83% | +2.84% |
| 62 | 2024-08-27 | 73.46% | 73.99% | +0.52% |
| 63 | 2024-08-13 | 78.18% | 73.46% | -4.72% |
| 64 | 2024-04-10 | 78.61% | 78.18% | -0.43% |
| 65 | 2024-03-12 | 70.05% | 78.61% | +8.56% |
| 66 | 2024-02-12 | 66.69% | 70.05% | +3.36% |
| 67 | 2024-02-07 | 37.76% | 66.69% | +28.93% |
| 68 | 2024-01-15 | 24.66% | 37.76% | +13.10% |
| 69 | 2023-12-31 | 28.29% | 24.66% | -3.63% |
| 70 | 2023-12-16 | 26.45% | 28.29% | +1.84% |
| 71 | 2023-12-01 | 16.71% | 26.45% | +9.75% |
| 72 | 2023-11-17 | 18.94% | 16.71% | -2.24% |
| 73 | 2023-11-03 | 16.15% | 18.94% | +2.80% |
| 74 | 2023-10-19 | 19.17% | 16.15% | -3.03% |
| 75 | 2023-09-22 | 59.89% | 19.17% | -40.72% |
| 76 | 2023-09-21 | 58.01% | 59.89% | +1.88% |
| 77 | 2023-09-08 | 46.95% | 58.01% | +11.07% |
| 78 | 2023-08-26 | 46.37% | 46.95% | +0.58% |
| 79 | 2023-08-12 | 36.37% | 46.37% | +9.99% |
| 80 | 2023-07-30 | 37.19% | 36.37% | -0.81% |
| 81 | 2023-07-23 | 79.12% | 37.19% | -41.93% |
| 82 | 2023-07-16 | 74.11% | 79.12% | +5.02% |
| 83 | 2023-06-20 | 76.16% | 74.11% | -2.06% |
| 84 | 2023-06-07 | 84.35% | 76.16% | -8.18% |
| 85 | 2023-04-30 | 83.91% | 84.35% | +0.43% |
| 86 | 2023-04-17 | 83.65% | 83.91% | +0.26% |
| 87 | 2023-04-04 | 88.17% | 83.65% | -4.52% |
| 88 | 2023-03-24 | 88.36% | 88.17% | -0.19% |
| 89 | 2023-03-07 | 44.04% | 88.36% | +44.32% |
| 90 | 2022-04-05 | 17.69% | 44.04% | +26.36% |
| 91 | 2022-03-29 | — | 17.69% | — |