EPSS score history for CVE-2021-23839, 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 | 0.29% | 2.99% | +2.70% |
| 2 | 2025-11-21 | 1.52% | 0.29% | -1.23% |
| 3 | 2025-11-18 | 0.26% | 1.52% | +1.26% |
| 4 | 2025-03-30 | 0.42% | 0.26% | -0.16% |
| 5 | 2025-03-29 | 0.26% | 0.42% | +0.16% |
| 6 | 2025-03-17 | 0.20% | 0.26% | +0.07% |
| 7 | 2025-01-07 | 0.15% | 0.20% | +0.05% |
| 8 | 2024-12-17 | 0.17% | 0.15% | -0.03% |
| 9 | 2023-03-07 | 1.54% | 0.17% | -1.36% |
| 10 | 2022-09-14 | 1.18% | 1.54% | +0.35% |
| 11 | 2022-04-20 | 1.11% | 1.18% | +0.08% |
| 12 | 2022-04-01 | 21.89% | 1.11% | -20.79% |
| 13 | 2022-02-04 | 7.04% | 21.89% | +14.86% |
| 14 | 2022-01-06 | 1.66% | 7.04% | +5.38% |
| 15 | 2021-10-21 | 1.45% | 1.66% | +0.20% |
| 16 | 2021-07-21 | 1.25% | 1.45% | +0.21% |
| 17 | 2021-07-15 | 1.04% | 1.25% | +0.21% |
| 18 | 2021-06-24 | 4.50% | 1.04% | -3.46% |
| 19 | 2021-06-19 | 1.04% | 4.50% | +3.46% |
| 20 | 2021-06-15 | 0.83% | 1.04% | +0.21% |
| 21 | 2021-04-14 | — | 0.83% | — |