EPSS score history for CVE-2021-30554, 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 | 5.82% | 7.37% | +1.54% |
| 2 | 2026-06-01 | 3.39% | 5.82% | +2.43% |
| 3 | 2026-05-26 | 3.92% | 3.39% | -0.53% |
| 4 | 2026-02-27 | 2.00% | 3.92% | +1.92% |
| 5 | 2026-02-21 | 2.33% | 2.00% | -0.32% |
| 6 | 2026-02-07 | 2.09% | 2.33% | +0.23% |
| 7 | 2026-01-24 | 4.09% | 2.09% | -2.00% |
| 8 | 2026-01-18 | 4.58% | 4.09% | -0.49% |
| 9 | 2025-11-21 | 1.63% | 4.58% | +2.95% |
| 10 | 2025-11-18 | 4.58% | 1.63% | -2.95% |
| 11 | 2025-10-25 | 7.14% | 4.58% | -2.55% |
| 12 | 2025-10-22 | 7.82% | 7.14% | -0.68% |
| 13 | 2025-10-21 | 12.88% | 7.82% | -5.07% |
| 14 | 2025-09-23 | 27.34% | 12.88% | -14.45% |
| 15 | 2025-09-22 | 24.63% | 27.34% | +2.71% |
| 16 | 2025-07-31 | 27.34% | 24.63% | -2.71% |
| 17 | 2025-07-22 | 24.63% | 27.34% | +2.71% |
| 18 | 2025-06-20 | 19.70% | 24.63% | +4.93% |
| 19 | 2025-05-06 | 17.66% | 19.70% | +2.04% |
| 20 | 2025-04-21 | 19.70% | 17.66% | -2.04% |
| 21 | 2025-04-20 | 22.06% | 19.70% | -2.36% |
| 22 | 2025-04-10 | 20.01% | 22.06% | +2.05% |
| 23 | 2025-03-30 | 54.38% | 20.01% | -34.37% |
| 24 | 2025-03-29 | 20.01% | 54.38% | +34.37% |
| 25 | 2025-03-17 | 1.21% | 20.01% | +18.81% |
| 26 | 2024-12-17 | 1.82% | 1.21% | -0.61% |
| 27 | 2024-07-30 | 2.68% | 1.82% | -0.86% |
| 28 | 2024-03-17 | 3.30% | 2.68% | -0.62% |
| 29 | 2024-02-06 | 2.36% | 3.30% | +0.95% |
| 30 | 2024-01-11 | 2.28% | 2.36% | +0.08% |
| 31 | 2023-12-15 | 1.78% | 2.28% | +0.50% |
| 32 | 2023-11-18 | 1.62% | 1.78% | +0.16% |
| 33 | 2023-11-08 | 0.68% | 1.62% | +0.94% |
| 34 | 2023-03-07 | 1.21% | 0.68% | -0.53% |
| 35 | 2022-04-01 | 27.77% | 1.21% | -26.55% |
| 36 | 2022-02-04 | 3.02% | 27.77% | +24.74% |
| 37 | 2022-01-06 | 0.69% | 3.02% | +2.33% |
| 38 | 2021-07-18 | 0.57% | 0.69% | +0.11% |
| 39 | 2021-07-09 | 0.46% | 0.57% | +0.11% |
| 40 | 2021-07-07 | 1.11% | 0.46% | -0.65% |
| 41 | 2021-07-06 | 0.83% | 1.11% | +0.28% |
| 42 | 2021-07-03 | — | 0.83% | — |