EPSS score history for CVE-2021-1870, 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 | 1.15% | 7.92% | +6.77% |
| 2 | 2025-12-03 | 0.91% | 1.15% | +0.24% |
| 3 | 2025-11-21 | 1.33% | 0.91% | -0.42% |
| 4 | 2025-11-18 | 0.85% | 1.33% | +0.48% |
| 5 | 2025-10-22 | 0.41% | 0.85% | +0.44% |
| 6 | 2025-08-31 | 0.52% | 0.41% | -0.11% |
| 7 | 2025-07-16 | 0.45% | 0.52% | +0.07% |
| 8 | 2025-07-08 | 0.49% | 0.45% | -0.04% |
| 9 | 2025-07-04 | 0.58% | 0.49% | -0.08% |
| 10 | 2025-06-20 | 0.55% | 0.58% | +0.03% |
| 11 | 2025-03-30 | 3.09% | 0.55% | -2.55% |
| 12 | 2025-03-29 | 0.55% | 3.09% | +2.55% |
| 13 | 2025-03-21 | 0.40% | 0.55% | +0.14% |
| 14 | 2025-03-17 | 1.85% | 0.40% | -1.44% |
| 15 | 2025-03-01 | 2.36% | 1.85% | -0.51% |
| 16 | 2025-02-04 | 1.90% | 2.36% | +0.45% |
| 17 | 2024-12-17 | 1.70% | 1.90% | +0.20% |
| 18 | 2024-07-27 | 1.39% | 1.70% | +0.32% |
| 19 | 2024-06-03 | 0.98% | 1.39% | +0.40% |
| 20 | 2023-12-17 | 0.82% | 0.98% | +0.16% |
| 21 | 2023-11-08 | 0.46% | 0.82% | +0.36% |
| 22 | 2023-11-07 | 0.40% | 0.46% | +0.06% |
| 23 | 2023-07-23 | 0.54% | 0.40% | -0.14% |
| 24 | 2023-04-29 | 0.42% | 0.54% | +0.12% |
| 25 | 2023-03-07 | 3.82% | 0.42% | -3.40% |
| 26 | 2022-04-01 | 63.30% | 3.82% | -59.47% |
| 27 | 2022-02-04 | 1.80% | 63.30% | +61.49% |
| 28 | 2022-01-06 | 0.41% | 1.80% | +1.40% |
| 29 | 2021-05-01 | 0.34% | 0.41% | +0.07% |
| 30 | 2021-04-14 | — | 0.34% | — |