EPSS score history for CVE-2023-4521, 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 | 2026-05-13 | 92.73% | 92.61% | -0.12% |
| 2 | 2026-03-04 | 92.61% | 92.73% | +0.12% |
| 3 | 2026-02-24 | 92.73% | 92.61% | -0.12% |
| 4 | 2026-02-18 | 91.71% | 92.73% | +1.02% |
| 5 | 2025-11-21 | 84.09% | 91.71% | +7.62% |
| 6 | 2025-11-18 | 91.71% | 84.09% | -7.62% |
| 7 | 2025-09-18 | 91.06% | 91.71% | +0.65% |
| 8 | 2025-08-31 | 90.90% | 91.06% | +0.15% |
| 9 | 2025-04-15 | 80.58% | 90.90% | +10.32% |
| 10 | 2025-03-30 | 85.35% | 80.58% | -4.77% |
| 11 | 2025-03-29 | 80.58% | 85.35% | +4.77% |
| 12 | 2025-03-19 | 79.21% | 80.58% | +1.37% |
| 13 | 2025-03-18 | 75.73% | 79.21% | +3.48% |
| 14 | 2025-03-17 | 3.65% | 75.73% | +72.08% |
| 15 | 2025-03-07 | 3.60% | 3.65% | +0.06% |
| 16 | 2025-02-22 | 2.88% | 3.60% | +0.72% |
| 17 | 2024-12-30 | 2.34% | 2.88% | +0.54% |
| 18 | 2024-12-17 | 1.95% | 2.34% | +0.39% |
| 19 | 2024-10-27 | 1.60% | 1.95% | +0.35% |
| 20 | 2024-10-01 | 1.41% | 1.60% | +0.19% |
| 21 | 2024-08-25 | 1.33% | 1.41% | +0.08% |
| 22 | 2024-08-14 | 1.88% | 1.33% | -0.55% |
| 23 | 2024-07-21 | 1.62% | 1.88% | +0.27% |
| 24 | 2024-07-09 | 3.68% | 1.62% | -2.06% |
| 25 | 2024-06-28 | 5.06% | 3.68% | -1.38% |
| 26 | 2024-06-15 | 3.87% | 5.06% | +1.19% |
| 27 | 2024-06-06 | 3.06% | 3.87% | +0.82% |
| 28 | 2024-05-24 | 3.16% | 3.06% | -0.11% |
| 29 | 2024-05-13 | 2.91% | 3.16% | +0.25% |
| 30 | 2024-05-07 | 0.16% | 2.91% | +2.76% |
| 31 | 2024-04-09 | 0.31% | 0.16% | -0.16% |
| 32 | 2023-11-08 | 0.38% | 0.31% | -0.07% |
| 33 | 2023-09-27 | 0.04% | 0.38% | +0.34% |
| 34 | 2023-09-26 | — | 0.04% | — |