EPSS score history for CVE-2021-1647, 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 | 76.11% | 39.65% | -36.45% |
| 2 | 2026-06-05 | 77.39% | 76.11% | -1.28% |
| 3 | 2026-03-11 | 77.75% | 77.39% | -0.36% |
| 4 | 2026-03-06 | 77.89% | 77.75% | -0.14% |
| 5 | 2026-02-07 | 77.75% | 77.89% | +0.14% |
| 6 | 2026-01-14 | 73.99% | 77.75% | +3.76% |
| 7 | 2025-12-28 | 75.13% | 73.99% | -1.15% |
| 8 | 2025-12-27 | 73.99% | 75.13% | +1.15% |
| 9 | 2025-11-21 | 40.09% | 73.99% | +33.90% |
| 10 | 2025-11-18 | 73.99% | 40.09% | -33.90% |
| 11 | 2025-11-16 | 77.46% | 73.99% | -3.48% |
| 12 | 2025-10-28 | 78.44% | 77.46% | -0.98% |
| 13 | 2025-10-27 | 77.46% | 78.44% | +0.98% |
| 14 | 2025-10-22 | 73.81% | 77.46% | +3.66% |
| 15 | 2025-10-01 | 74.96% | 73.81% | -1.16% |
| 16 | 2025-09-03 | 74.90% | 74.96% | +0.06% |
| 17 | 2025-08-04 | 75.06% | 74.90% | -0.16% |
| 18 | 2025-07-16 | 60.51% | 75.06% | +14.55% |
| 19 | 2025-07-10 | 59.39% | 60.51% | +1.12% |
| 20 | 2025-06-05 | 63.05% | 59.39% | -3.66% |
| 21 | 2025-04-07 | 66.07% | 63.05% | -3.01% |
| 22 | 2025-04-06 | 70.26% | 66.07% | -4.20% |
| 23 | 2025-03-30 | 74.56% | 70.26% | -4.30% |
| 24 | 2025-03-29 | 70.26% | 74.56% | +4.30% |
| 25 | 2025-03-28 | 74.56% | 70.26% | -4.30% |
| 26 | 2025-03-27 | 70.26% | 74.56% | +4.30% |
| 27 | 2025-03-25 | 68.56% | 70.26% | +1.70% |
| 28 | 2025-03-22 | 72.94% | 68.56% | -4.38% |
| 29 | 2025-03-20 | 73.37% | 72.94% | -0.43% |
| 30 | 2025-03-19 | 61.41% | 73.37% | +11.96% |
| 31 | 2025-03-17 | 29.72% | 61.41% | +31.69% |
| 32 | 2025-03-09 | 24.09% | 29.72% | +5.63% |
| 33 | 2025-03-08 | 24.75% | 24.09% | -0.66% |
| 34 | 2025-02-21 | 21.01% | 24.75% | +3.74% |
| 35 | 2024-12-17 | 13.42% | 21.01% | +7.59% |
| 36 | 2024-12-03 | 13.57% | 13.42% | -0.15% |
| 37 | 2024-11-16 | 13.38% | 13.57% | +0.19% |
| 38 | 2024-11-01 | 13.48% | 13.38% | -0.09% |
| 39 | 2024-10-10 | 35.00% | 13.48% | -21.53% |
| 40 | 2024-09-11 | 33.80% | 35.00% | +1.21% |
| 41 | 2024-08-09 | 23.52% | 33.80% | +10.27% |
| 42 | 2024-07-22 | 14.85% | 23.52% | +8.67% |
| 43 | 2024-07-04 | 9.25% | 14.85% | +5.60% |
| 44 | 2024-06-17 | 9.73% | 9.25% | -0.48% |
| 45 | 2024-06-01 | 27.46% | 9.73% | -17.73% |
| 46 | 2024-05-17 | 14.61% | 27.46% | +12.85% |
| 47 | 2024-04-30 | 14.88% | 14.61% | -0.27% |
| 48 | 2024-04-15 | 17.10% | 14.88% | -2.22% |
| 49 | 2024-02-29 | 34.26% | 17.10% | -17.16% |
| 50 | 2024-02-15 | 21.35% | 34.26% | +12.91% |
| 51 | 2024-01-30 | 40.06% | 21.35% | -18.71% |
| 52 | 2024-01-16 | 18.30% | 40.06% | +21.76% |
| 53 | 2024-01-01 | 23.24% | 18.30% | -4.95% |
| 54 | 2023-12-30 | 96.98% | 23.24% | -73.74% |
| 55 | 2023-12-19 | 96.89% | 96.98% | +0.09% |
| 56 | 2023-11-21 | 96.96% | 96.89% | -0.07% |
| 57 | 2023-11-08 | 96.88% | 96.96% | +0.09% |
| 58 | 2023-10-24 | 97.00% | 96.88% | -0.12% |
| 59 | 2023-10-12 | 96.85% | 97.00% | +0.15% |
| 60 | 2023-09-28 | 97.00% | 96.85% | -0.15% |
| 61 | 2023-08-19 | 97.11% | 97.00% | -0.11% |
| 62 | 2023-08-07 | 97.00% | 97.11% | +0.11% |
| 63 | 2023-07-24 | 96.74% | 97.00% | +0.26% |
| 64 | 2023-07-11 | 96.98% | 96.74% | -0.24% |
| 65 | 2023-06-27 | 97.11% | 96.98% | -0.13% |
| 66 | 2023-05-16 | 97.04% | 97.11% | +0.07% |
| 67 | 2023-04-18 | 97.33% | 97.04% | -0.29% |
| 68 | 2023-03-22 | 97.36% | 97.33% | -0.03% |
| 69 | 2023-03-08 | 97.24% | 97.36% | +0.12% |
| 70 | 2023-03-07 | 1.88% | 97.24% | +95.36% |
| 71 | 2022-04-01 | 5.32% | 1.88% | -3.44% |
| 72 | 2022-02-04 | 32.21% | 5.32% | -26.89% |
| 73 | 2022-01-06 | 9.57% | 32.21% | +22.63% |
| 74 | 2021-04-14 | — | 9.57% | — |