EPSS score history for CVE-2021-28550, 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 | 30.72% | 52.01% | +21.28% |
| 2 | 2026-05-22 | 35.47% | 30.72% | -4.74% |
| 3 | 2026-05-12 | 32.57% | 35.47% | +2.90% |
| 4 | 2026-04-15 | 32.05% | 32.57% | +0.52% |
| 5 | 2026-01-22 | 14.25% | 32.05% | +17.80% |
| 6 | 2025-11-21 | 29.59% | 14.25% | -15.35% |
| 7 | 2025-11-18 | 14.25% | 29.59% | +15.35% |
| 8 | 2025-10-24 | 17.84% | 14.25% | -3.60% |
| 9 | 2025-10-22 | 22.45% | 17.84% | -4.60% |
| 10 | 2025-10-21 | 37.76% | 22.45% | -15.32% |
| 11 | 2025-10-11 | 22.39% | 37.76% | +15.37% |
| 12 | 2025-07-31 | 25.56% | 22.39% | -3.17% |
| 13 | 2025-07-28 | 21.35% | 25.56% | +4.21% |
| 14 | 2025-06-30 | 22.95% | 21.35% | -1.60% |
| 15 | 2025-06-15 | 22.42% | 22.95% | +0.53% |
| 16 | 2025-05-10 | 35.25% | 22.42% | -12.83% |
| 17 | 2025-03-30 | 63.57% | 35.25% | -28.32% |
| 18 | 2025-03-29 | 35.25% | 63.57% | +28.32% |
| 19 | 2025-03-25 | 41.69% | 35.25% | -6.44% |
| 20 | 2025-03-23 | 44.97% | 41.69% | -3.28% |
| 21 | 2025-03-19 | 56.34% | 44.97% | -11.38% |
| 22 | 2025-03-17 | 29.76% | 56.34% | +26.59% |
| 23 | 2025-01-20 | 36.93% | 29.76% | -7.17% |
| 24 | 2025-01-05 | 45.97% | 36.93% | -9.04% |
| 25 | 2024-12-17 | 40.92% | 45.97% | +5.05% |
| 26 | 2024-08-21 | 41.54% | 40.92% | -0.62% |
| 27 | 2024-08-08 | 40.34% | 41.54% | +1.19% |
| 28 | 2024-07-11 | 62.29% | 40.34% | -21.95% |
| 29 | 2024-06-01 | 49.24% | 62.29% | +13.05% |
| 30 | 2024-05-18 | 50.64% | 49.24% | -1.39% |
| 31 | 2024-04-08 | 62.47% | 50.64% | -11.84% |
| 32 | 2024-03-27 | 58.07% | 62.47% | +4.40% |
| 33 | 2023-12-23 | 63.43% | 58.07% | -5.36% |
| 34 | 2023-10-27 | 67.48% | 63.43% | -4.05% |
| 35 | 2023-09-16 | 70.38% | 67.48% | -2.90% |
| 36 | 2023-08-30 | 64.07% | 70.38% | +6.31% |
| 37 | 2023-08-02 | 63.44% | 64.07% | +0.62% |
| 38 | 2023-07-20 | 71.95% | 63.44% | -8.51% |
| 39 | 2023-06-22 | 74.99% | 71.95% | -3.04% |
| 40 | 2023-03-26 | 71.34% | 74.99% | +3.64% |
| 41 | 2023-03-07 | 1.28% | 71.34% | +70.06% |
| 42 | 2022-04-01 | 31.33% | 1.28% | -30.04% |
| 43 | 2022-02-04 | 27.23% | 31.33% | +4.10% |
| 44 | 2022-01-06 | 7.70% | 27.23% | +19.53% |
| 45 | 2021-09-16 | 0.73% | 7.70% | +6.97% |
| 46 | 2021-09-03 | — | 0.73% | — |