EPSS score history for CVE-2021-34522, 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 | 2026-07-01 | 2.56% | 2.55% | -0.01% |
| 2 | 2026-06-15 | 5.07% | 2.56% | -2.52% |
| 3 | 2026-06-04 | 4.12% | 5.07% | +0.96% |
| 4 | 2026-04-13 | 2.20% | 4.12% | +1.91% |
| 5 | 2025-12-05 | 1.07% | 2.20% | +1.13% |
| 6 | 2025-11-21 | 1.20% | 1.07% | -0.13% |
| 7 | 2025-11-18 | 1.07% | 1.20% | +0.13% |
| 8 | 2025-03-30 | 6.36% | 1.07% | -5.29% |
| 9 | 2025-03-29 | 1.07% | 6.36% | +5.29% |
| 10 | 2025-03-25 | 1.00% | 1.07% | +0.08% |
| 11 | 2025-03-19 | 2.99% | 1.00% | -1.99% |
| 12 | 2025-03-17 | 1.67% | 2.99% | +1.31% |
| 13 | 2025-02-08 | 1.88% | 1.67% | -0.21% |
| 14 | 2025-01-21 | 2.01% | 1.88% | -0.13% |
| 15 | 2025-01-03 | 1.66% | 2.01% | +0.35% |
| 16 | 2024-12-17 | 1.17% | 1.66% | +0.49% |
| 17 | 2024-11-16 | 1.33% | 1.17% | -0.16% |
| 18 | 2024-10-30 | 13.30% | 1.33% | -11.97% |
| 19 | 2024-10-15 | 7.93% | 13.30% | +5.37% |
| 20 | 2024-09-30 | 15.41% | 7.93% | -7.48% |
| 21 | 2024-09-14 | 10.07% | 15.41% | +5.34% |
| 22 | 2024-08-30 | 27.66% | 10.07% | -17.59% |
| 23 | 2024-08-16 | 6.52% | 27.66% | +21.14% |
| 24 | 2024-07-31 | 10.35% | 6.52% | -3.83% |
| 25 | 2024-07-17 | 4.45% | 10.35% | +5.90% |
| 26 | 2024-07-02 | 10.57% | 4.45% | -6.12% |
| 27 | 2024-06-19 | 4.06% | 10.57% | +6.51% |
| 28 | 2024-06-05 | 5.51% | 4.06% | -1.44% |
| 29 | 2024-05-22 | 6.61% | 5.51% | -1.11% |
| 30 | 2024-05-09 | 4.08% | 6.61% | +2.53% |
| 31 | 2024-04-24 | 15.22% | 4.08% | -11.14% |
| 32 | 2024-04-12 | 6.78% | 15.22% | +8.44% |
| 33 | 2024-03-29 | 3.52% | 6.78% | +3.26% |
| 34 | 2024-03-16 | 5.46% | 3.52% | -1.94% |
| 35 | 2024-03-03 | 3.07% | 5.46% | +2.39% |
| 36 | 2024-02-18 | 9.55% | 3.07% | -6.48% |
| 37 | 2024-02-06 | 3.02% | 9.55% | +6.53% |
| 38 | 2024-01-23 | 2.88% | 3.02% | +0.15% |
| 39 | 2024-01-10 | 38.25% | 2.88% | -35.37% |
| 40 | 2023-12-27 | 2.31% | 38.25% | +35.94% |
| 41 | 2023-12-14 | 27.53% | 2.31% | -25.22% |
| 42 | 2023-11-30 | 2.74% | 27.53% | +24.79% |
| 43 | 2023-11-15 | 0.85% | 2.74% | +1.89% |
| 44 | 2023-11-03 | 1.19% | 0.85% | -0.34% |
| 45 | 2023-10-18 | 0.38% | 1.19% | +0.81% |
| 46 | 2023-10-06 | 0.26% | 0.38% | +0.12% |
| 47 | 2023-08-10 | 0.21% | 0.26% | +0.05% |
| 48 | 2023-05-31 | 0.44% | 0.21% | -0.22% |
| 49 | 2023-05-17 | 0.63% | 0.44% | -0.19% |
| 50 | 2023-05-03 | 0.53% | 0.63% | +0.10% |
| 51 | 2023-04-03 | 0.69% | 0.53% | -0.17% |
| 52 | 2023-03-19 | 0.50% | 0.69% | +0.20% |
| 53 | 2023-03-07 | 1.79% | 0.50% | -1.29% |
| 54 | 2023-01-30 | 1.65% | 1.79% | +0.14% |
| 55 | 2022-10-02 | 1.53% | 1.65% | +0.12% |
| 56 | 2022-04-01 | 12.76% | 1.53% | -11.23% |
| 57 | 2022-02-04 | 32.21% | 12.76% | -19.45% |
| 58 | 2022-01-06 | 9.57% | 32.21% | +22.63% |
| 59 | 2021-07-23 | 0.92% | 9.57% | +8.66% |
| 60 | 2021-07-15 | — | 0.92% | — |