EPSS score history for CVE-2021-27520, 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 | 1.81% | 6.40% | +4.58% |
| 2 | 2026-03-11 | 1.25% | 1.81% | +0.57% |
| 3 | 2026-03-10 | 1.12% | 1.25% | +0.13% |
| 4 | 2025-11-21 | 1.82% | 1.12% | -0.70% |
| 5 | 2025-11-18 | 1.06% | 1.82% | +0.76% |
| 6 | 2025-03-30 | 6.09% | 1.06% | -5.03% |
| 7 | 2025-03-29 | 1.06% | 6.09% | +5.03% |
| 8 | 2025-03-28 | 0.70% | 1.06% | +0.36% |
| 9 | 2025-03-24 | 1.06% | 0.70% | -0.36% |
| 10 | 2025-03-23 | 0.70% | 1.06% | +0.36% |
| 11 | 2025-03-18 | 1.06% | 0.70% | -0.36% |
| 12 | 2025-03-17 | 4.09% | 1.06% | -3.03% |
| 13 | 2025-01-21 | 5.68% | 4.09% | -1.59% |
| 14 | 2025-01-06 | 4.71% | 5.68% | +0.97% |
| 15 | 2024-12-19 | 6.52% | 4.71% | -1.81% |
| 16 | 2024-12-17 | 0.31% | 6.52% | +6.21% |
| 17 | 2024-06-05 | 0.19% | 0.31% | +0.12% |
| 18 | 2023-03-07 | 2.17% | 0.19% | -1.98% |
| 19 | 2022-11-15 | 1.05% | 2.17% | +1.12% |
| 20 | 2022-07-15 | 2.17% | 1.05% | -1.12% |
| 21 | 2022-04-01 | 3.48% | 2.17% | -1.31% |
| 22 | 2022-02-04 | 3.43% | 3.48% | +0.06% |
| 23 | 2021-06-04 | 0.52% | 3.43% | +2.90% |
| 24 | 2021-04-14 | — | 0.52% | — |