EPSS score history for CVE-2021-4034, 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 | 87.35% | 94.92% | +7.57% |
| 2 | 2026-06-10 | 87.49% | 87.35% | -0.14% |
| 3 | 2026-06-09 | 88.06% | 87.49% | -0.57% |
| 4 | 2026-05-28 | 88.32% | 88.06% | -0.26% |
| 5 | 2026-05-27 | 88.81% | 88.32% | -0.49% |
| 6 | 2026-05-23 | 88.66% | 88.81% | +0.15% |
| 7 | 2026-05-22 | 87.35% | 88.66% | +1.31% |
| 8 | 2026-05-11 | 87.49% | 87.35% | -0.14% |
| 9 | 2026-05-10 | 88.06% | 87.49% | -0.57% |
| 10 | 2026-05-06 | 88.47% | 88.06% | -0.41% |
| 11 | 2026-05-02 | 88.06% | 88.47% | +0.41% |
| 12 | 2026-04-28 | 88.32% | 88.06% | -0.26% |
| 13 | 2026-04-27 | 88.81% | 88.32% | -0.49% |
| 14 | 2026-04-23 | 88.66% | 88.81% | +0.15% |
| 15 | 2026-04-22 | 88.08% | 88.66% | +0.58% |
| 16 | 2026-04-21 | 87.81% | 88.08% | +0.27% |
| 17 | 2026-04-10 | 87.94% | 87.81% | -0.13% |
| 18 | 2026-04-02 | 88.47% | 87.94% | -0.53% |
| 19 | 2026-03-26 | 88.32% | 88.47% | +0.16% |
| 20 | 2026-03-21 | 87.81% | 88.32% | +0.50% |
| 21 | 2026-03-16 | 87.12% | 87.81% | +0.69% |
| 22 | 2026-03-09 | 87.26% | 87.12% | -0.14% |
| 23 | 2026-03-04 | 86.73% | 87.26% | +0.53% |
| 24 | 2026-03-01 | 87.26% | 86.73% | -0.53% |
| 25 | 2026-02-19 | 87.85% | 87.26% | -0.59% |
| 26 | 2026-02-18 | 87.12% | 87.85% | +0.73% |
| 27 | 2026-02-05 | 87.26% | 87.12% | -0.14% |
| 28 | 2026-02-04 | 86.73% | 87.26% | +0.53% |
| 29 | 2026-02-01 | 87.85% | 86.73% | -1.11% |
| 30 | 2026-01-27 | 89.04% | 87.85% | -1.19% |
| 31 | 2026-01-23 | 87.68% | 89.04% | +1.37% |
| 32 | 2026-01-22 | 87.07% | 87.68% | +0.60% |
| 33 | 2026-01-18 | 88.44% | 87.07% | -1.37% |
| 34 | 2026-01-15 | 87.12% | 88.44% | +1.32% |
| 35 | 2026-01-08 | 88.56% | 87.12% | -1.44% |
| 36 | 2026-01-05 | 87.26% | 88.56% | +1.30% |
| 37 | 2026-01-04 | 86.73% | 87.26% | +0.53% |
| 38 | 2026-01-01 | 87.26% | 86.73% | -0.53% |
| 39 | 2025-12-28 | 87.21% | 87.26% | +0.05% |
| 40 | 2025-12-27 | 87.26% | 87.21% | -0.05% |
| 41 | 2025-12-18 | 87.12% | 87.26% | +0.14% |
| 42 | 2025-12-13 | 84.05% | 87.12% | +3.07% |
| 43 | 2025-12-09 | 83.93% | 84.05% | +0.12% |
| 44 | 2025-12-04 | 83.17% | 83.93% | +0.76% |
| 45 | 2025-12-02 | 83.38% | 83.17% | -0.21% |
| 46 | 2025-12-01 | 84.97% | 83.38% | -1.58% |
| 47 | 2025-11-21 | 92.97% | 84.97% | -8.00% |
| 48 | 2025-11-18 | 83.93% | 92.97% | +9.04% |
| 49 | 2025-11-04 | 83.17% | 83.93% | +0.76% |
| 50 | 2025-11-01 | 83.93% | 83.17% | -0.76% |
| 51 | 2025-10-31 | 87.03% | 83.93% | -3.11% |
| 52 | 2025-10-30 | 83.93% | 87.03% | +3.11% |
| 53 | 2025-10-29 | 87.03% | 83.93% | -3.11% |
| 54 | 2025-10-24 | 87.18% | 87.03% | -0.14% |
| 55 | 2025-10-22 | 87.77% | 87.18% | -0.59% |
| 56 | 2025-10-17 | 87.03% | 87.77% | +0.74% |
| 57 | 2025-10-09 | 86.52% | 87.03% | +0.51% |
| 58 | 2025-10-04 | 85.94% | 86.52% | +0.58% |
| 59 | 2025-10-03 | 86.11% | 85.94% | -0.16% |
| 60 | 2025-10-02 | 87.28% | 86.11% | -1.18% |
| 61 | 2025-10-01 | 87.72% | 87.28% | -0.44% |
| 62 | 2025-09-28 | 87.26% | 87.72% | +0.47% |
| 63 | 2025-09-20 | 87.76% | 87.26% | -0.50% |
| 64 | 2025-09-19 | 88.54% | 87.76% | -0.78% |
| 65 | 2025-09-18 | 87.97% | 88.54% | +0.57% |
| 66 | 2025-09-17 | 88.54% | 87.97% | -0.57% |
| 67 | 2025-09-16 | 86.96% | 88.54% | +1.58% |
| 68 | 2025-09-10 | 86.71% | 86.96% | +0.26% |
| 69 | 2025-09-05 | 86.30% | 86.71% | +0.41% |
| 70 | 2025-09-01 | 85.74% | 86.30% | +0.57% |
| 71 | 2025-08-27 | 86.50% | 85.74% | -0.77% |
| 72 | 2025-08-23 | 87.02% | 86.50% | -0.51% |
| 73 | 2025-08-14 | 87.69% | 87.02% | -0.67% |
| 74 | 2025-08-13 | 87.09% | 87.69% | +0.60% |
| 75 | 2025-08-12 | 87.67% | 87.09% | -0.59% |
| 76 | 2025-08-08 | 87.16% | 87.67% | +0.52% |
| 77 | 2025-08-07 | 87.07% | 87.16% | +0.08% |
| 78 | 2025-08-06 | 87.22% | 87.07% | -0.15% |
| 79 | 2025-08-04 | 86.69% | 87.22% | +0.53% |
| 80 | 2025-08-03 | 86.84% | 86.69% | -0.15% |
| 81 | 2025-08-01 | 87.36% | 86.84% | -0.52% |
| 82 | 2025-07-25 | 87.69% | 87.36% | -0.33% |
| 83 | 2025-07-24 | 88.70% | 87.69% | -1.01% |
| 84 | 2025-07-16 | 88.31% | 88.70% | +0.39% |
| 85 | 2025-07-06 | 88.43% | 88.31% | -0.12% |
| 86 | 2025-07-04 | 87.99% | 88.43% | +0.44% |
| 87 | 2025-07-01 | 88.43% | 87.99% | -0.44% |
| 88 | 2025-06-28 | 88.71% | 88.43% | -0.28% |
| 89 | 2025-06-23 | 88.41% | 88.71% | +0.30% |
| 90 | 2025-06-18 | 88.72% | 88.41% | -0.30% |
| 91 | 2025-06-17 | 88.58% | 88.72% | +0.14% |
| 92 | 2025-06-16 | 88.29% | 88.58% | +0.29% |
| 93 | 2025-06-15 | 89.67% | 88.29% | -1.39% |
| 94 | 2025-06-05 | 88.62% | 89.67% | +1.06% |
| 95 | 2025-06-04 | 89.42% | 88.62% | -0.80% |
| 96 | 2025-06-01 | 89.76% | 89.42% | -0.34% |
| 97 | 2025-05-24 | 88.72% | 89.76% | +1.05% |
| 98 | 2025-05-17 | 88.58% | 88.72% | +0.14% |
| 99 | 2025-05-15 | 88.73% | 88.58% | -0.15% |
| 100 | 2025-05-07 | 88.62% | 88.73% | +0.11% |
| 101 | 2025-05-04 | 88.31% | 88.62% | +0.31% |
| 102 | 2025-05-01 | 88.73% | 88.31% | -0.42% |
| 103 | 2025-04-25 | 87.43% | 88.73% | +1.30% |
| 104 | 2025-04-20 | 87.76% | 87.43% | -0.33% |
| 105 | 2025-04-19 | 87.74% | 87.76% | +0.02% |
| 106 | 2025-04-16 | 87.76% | 87.74% | -0.02% |
| 107 | 2025-04-15 | 87.29% | 87.76% | +0.47% |
| 108 | 2025-04-10 | 86.77% | 87.29% | +0.52% |
| 109 | 2025-04-09 | 87.29% | 86.77% | -0.52% |
| 110 | 2025-04-07 | 86.77% | 87.29% | +0.52% |
| 111 | 2025-04-06 | 87.29% | 86.77% | -0.52% |
| 112 | 2025-03-24 | 87.43% | 87.29% | -0.14% |
| 113 | 2025-03-19 | 87.76% | 87.43% | -0.33% |
| 114 | 2025-03-17 | 0.12% | 87.76% | +87.64% |
| 115 | 2024-06-29 | 0.05% | 0.12% | +0.08% |
| 116 | 2023-03-07 | 4.11% | 0.05% | -4.06% |
| 117 | 2023-02-14 | 2.37% | 4.11% | +1.74% |
| 118 | 2023-02-03 | 4.11% | 2.37% | -1.74% |
| 119 | 2022-11-15 | 9.68% | 4.11% | -5.57% |
| 120 | 2022-10-06 | 13.06% | 9.68% | -3.39% |
| 121 | 2022-07-15 | 8.95% | 13.06% | +4.11% |
| 122 | 2022-03-04 | 3.64% | 8.95% | +5.31% |
| 123 | 2022-02-04 | 4.23% | 3.64% | -0.58% |
| 124 | 2022-01-29 | — | 4.23% | — |