EPSS score history for CVE-2021-34997, 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 | 2.11% | 4.25% | +2.14% |
| 2 | 2025-11-21 | 21.14% | 2.11% | -19.03% |
| 3 | 2025-11-18 | 2.11% | 21.14% | +19.03% |
| 4 | 2025-10-08 | 2.77% | 2.11% | -0.66% |
| 5 | 2025-03-30 | 6.92% | 2.77% | -4.16% |
| 6 | 2025-03-29 | 2.77% | 6.92% | +4.16% |
| 7 | 2025-03-25 | 2.56% | 2.77% | +0.20% |
| 8 | 2025-03-19 | 2.00% | 2.56% | +0.56% |
| 9 | 2025-03-17 | 2.19% | 2.00% | -0.18% |
| 10 | 2025-03-16 | 2.70% | 2.19% | -0.51% |
| 11 | 2025-01-16 | 2.31% | 2.70% | +0.39% |
| 12 | 2024-12-17 | 4.01% | 2.31% | -1.70% |
| 13 | 2024-11-21 | 3.13% | 4.01% | +0.88% |
| 14 | 2024-06-27 | 3.00% | 3.13% | +0.13% |
| 15 | 2024-01-27 | 3.49% | 3.00% | -0.49% |
| 16 | 2023-12-29 | 2.88% | 3.49% | +0.62% |
| 17 | 2023-09-18 | 4.21% | 2.88% | -1.33% |
| 18 | 2023-08-21 | 3.69% | 4.21% | +0.52% |
| 19 | 2023-08-06 | 4.29% | 3.69% | -0.60% |
| 20 | 2023-07-09 | 3.17% | 4.29% | +1.12% |
| 21 | 2023-06-26 | 3.27% | 3.17% | -0.10% |
| 22 | 2023-06-13 | 2.58% | 3.27% | +0.69% |
| 23 | 2023-04-07 | 2.80% | 2.58% | -0.22% |
| 24 | 2023-03-07 | 1.16% | 2.80% | +1.64% |
| 25 | 2022-02-04 | 0.92% | 1.16% | +0.24% |
| 26 | 2022-01-14 | — | 0.92% | — |