EPSS score history for CVE-2021-34798, 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 | 2026-06-21 | 62.77% | 64.51% | +1.74% |
| 2 | 2026-06-15 | 8.67% | 62.77% | +54.10% |
| 3 | 2026-06-11 | 10.29% | 8.67% | -1.62% |
| 4 | 2026-03-17 | 13.35% | 10.29% | -3.06% |
| 5 | 2026-03-09 | 11.33% | 13.35% | +2.02% |
| 6 | 2026-03-08 | 9.88% | 11.33% | +1.45% |
| 7 | 2026-03-04 | 4.03% | 9.88% | +5.85% |
| 8 | 2026-03-01 | 9.88% | 4.03% | -5.85% |
| 9 | 2026-02-13 | 11.69% | 9.88% | -1.81% |
| 10 | 2026-02-04 | 4.84% | 11.69% | +6.85% |
| 11 | 2026-02-03 | 4.97% | 4.84% | -0.13% |
| 12 | 2026-02-01 | 11.96% | 4.97% | -7.00% |
| 13 | 2026-01-21 | 11.69% | 11.96% | +0.28% |
| 14 | 2026-01-16 | 9.54% | 11.69% | +2.15% |
| 15 | 2026-01-13 | 11.69% | 9.54% | -2.15% |
| 16 | 2026-01-04 | 4.84% | 11.69% | +6.85% |
| 17 | 2026-01-01 | 11.69% | 4.84% | -6.85% |
| 18 | 2025-12-28 | 10.97% | 11.69% | +0.72% |
| 19 | 2025-12-27 | 11.69% | 10.97% | -0.72% |
| 20 | 2025-12-04 | 4.84% | 11.69% | +6.85% |
| 21 | 2025-12-01 | 11.69% | 4.84% | -6.85% |
| 22 | 2025-11-21 | 57.48% | 11.69% | -45.79% |
| 23 | 2025-11-18 | 11.69% | 57.48% | +45.79% |
| 24 | 2025-11-10 | 9.88% | 11.69% | +1.81% |
| 25 | 2025-11-04 | 4.03% | 9.88% | +5.85% |
| 26 | 2025-11-01 | 9.88% | 4.03% | -5.85% |
| 27 | 2025-10-28 | 9.26% | 9.88% | +0.62% |
| 28 | 2025-10-27 | 9.88% | 9.26% | -0.62% |
| 29 | 2025-10-09 | 11.69% | 9.88% | -1.81% |
| 30 | 2025-10-04 | 4.84% | 11.69% | +6.85% |
| 31 | 2025-10-01 | 10.97% | 4.84% | -6.13% |
| 32 | 2025-09-04 | 2.60% | 10.97% | +8.37% |
| 33 | 2025-09-01 | 10.97% | 2.60% | -8.37% |
| 34 | 2025-08-04 | 2.60% | 10.97% | +8.37% |
| 35 | 2025-08-01 | 10.97% | 2.60% | -8.37% |
| 36 | 2025-07-30 | 11.69% | 10.97% | -0.72% |
| 37 | 2025-07-04 | 4.84% | 11.69% | +6.85% |
| 38 | 2025-07-01 | 11.69% | 4.84% | -6.85% |
| 39 | 2025-06-04 | 4.84% | 11.69% | +6.85% |
| 40 | 2025-06-03 | 4.97% | 4.84% | -0.13% |
| 41 | 2025-06-01 | 11.96% | 4.97% | -7.00% |
| 42 | 2025-05-17 | 11.69% | 11.96% | +0.28% |
| 43 | 2025-05-15 | 9.88% | 11.69% | +1.81% |
| 44 | 2025-05-09 | 8.58% | 9.88% | +1.30% |
| 45 | 2025-05-04 | 3.46% | 8.58% | +5.12% |
| 46 | 2025-05-01 | 8.58% | 3.46% | -5.12% |
| 47 | 2025-04-16 | 10.18% | 8.58% | -1.60% |
| 48 | 2025-03-30 | 47.27% | 10.18% | -37.09% |
| 49 | 2025-03-29 | 10.18% | 47.27% | +37.09% |
| 50 | 2025-03-24 | 26.29% | 10.18% | -16.11% |
| 51 | 2025-03-23 | 10.18% | 26.29% | +16.11% |
| 52 | 2025-03-17 | 0.95% | 10.18% | +9.23% |
| 53 | 2025-02-19 | 1.14% | 0.95% | -0.18% |
| 54 | 2024-12-17 | 0.87% | 1.14% | +0.26% |
| 55 | 2024-10-19 | 0.64% | 0.87% | +0.23% |
| 56 | 2024-08-22 | 0.50% | 0.64% | +0.15% |
| 57 | 2023-11-08 | 1.72% | 0.50% | -1.22% |
| 58 | 2023-09-01 | 1.22% | 1.72% | +0.50% |
| 59 | 2023-05-08 | 0.99% | 1.22% | +0.23% |
| 60 | 2023-04-09 | 0.89% | 0.99% | +0.09% |
| 61 | 2023-03-07 | 7.77% | 0.89% | -6.87% |
| 62 | 2022-04-01 | 44.26% | 7.77% | -36.49% |
| 63 | 2022-02-08 | 33.57% | 44.26% | +10.69% |
| 64 | 2022-02-04 | 27.08% | 33.57% | +6.49% |
| 65 | 2022-01-06 | 7.65% | 27.08% | +19.44% |
| 66 | 2021-11-25 | 7.09% | 7.65% | +0.55% |
| 67 | 2021-10-20 | 6.54% | 7.09% | +0.56% |
| 68 | 2021-10-11 | 22.19% | 6.54% | -15.65% |
| 69 | 2021-10-09 | 20.41% | 22.19% | +1.78% |
| 70 | 2021-10-05 | 5.41% | 20.41% | +15.00% |
| 71 | 2021-10-03 | 4.83% | 5.41% | +0.58% |
| 72 | 2021-09-28 | 1.66% | 4.83% | +3.17% |
| 73 | 2021-09-25 | 1.45% | 1.66% | +0.20% |
| 74 | 2021-09-24 | 0.62% | 1.45% | +0.83% |
| 75 | 2021-09-21 | 0.42% | 0.62% | +0.21% |
| 76 | 2021-09-17 | — | 0.42% | — |