EPSS score history for CVE-2021-21687, 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 | 0.27% | 1.34% | +1.07% |
| 2 | 2026-03-04 | 0.23% | 0.27% | +0.04% |
| 3 | 2026-03-01 | 0.27% | 0.23% | -0.04% |
| 4 | 2026-02-04 | 0.23% | 0.27% | +0.04% |
| 5 | 2026-02-01 | 0.27% | 0.23% | -0.04% |
| 6 | 2026-01-04 | 0.23% | 0.27% | +0.04% |
| 7 | 2026-01-01 | 0.27% | 0.23% | -0.04% |
| 8 | 2025-12-28 | 0.14% | 0.27% | +0.13% |
| 9 | 2025-12-27 | 0.27% | 0.14% | -0.13% |
| 10 | 2025-12-04 | 0.23% | 0.27% | +0.04% |
| 11 | 2025-12-01 | 0.27% | 0.23% | -0.04% |
| 12 | 2025-10-28 | 0.20% | 0.27% | +0.08% |
| 13 | 2025-10-27 | 0.27% | 0.20% | -0.08% |
| 14 | 2025-10-23 | 0.40% | 0.27% | -0.13% |
| 15 | 2025-10-04 | 0.93% | 0.40% | -0.53% |
| 16 | 2025-10-01 | 0.30% | 0.93% | +0.63% |
| 17 | 2025-09-04 | 1.24% | 0.30% | -0.93% |
| 18 | 2025-09-01 | 0.30% | 1.24% | +0.93% |
| 19 | 2025-08-26 | 0.23% | 0.30% | +0.07% |
| 20 | 2025-08-04 | 1.24% | 0.23% | -1.01% |
| 21 | 2025-08-01 | 0.23% | 1.24% | +1.01% |
| 22 | 2025-07-30 | 0.32% | 0.23% | -0.09% |
| 23 | 2025-07-04 | 1.70% | 0.32% | -1.38% |
| 24 | 2025-07-01 | 0.32% | 1.70% | +1.38% |
| 25 | 2025-06-04 | 1.70% | 0.32% | -1.38% |
| 26 | 2025-06-01 | 0.30% | 1.70% | +1.40% |
| 27 | 2025-05-04 | 1.70% | 0.30% | -1.40% |
| 28 | 2025-05-01 | 0.30% | 1.70% | +1.40% |
| 29 | 2025-04-30 | 0.37% | 0.30% | -0.07% |
| 30 | 2025-03-30 | 0.71% | 0.37% | -0.34% |
| 31 | 2025-03-29 | 0.37% | 0.71% | +0.34% |
| 32 | 2025-03-19 | 0.34% | 0.37% | +0.03% |
| 33 | 2025-03-17 | 0.16% | 0.34% | +0.17% |
| 34 | 2023-03-07 | 0.89% | 0.16% | -0.72% |
| 35 | 2022-04-01 | 9.03% | 0.89% | -8.14% |
| 36 | 2022-02-04 | 1.84% | 9.03% | +7.19% |
| 37 | 2022-01-06 | 0.42% | 1.84% | +1.42% |
| 38 | 2021-11-05 | — | 0.42% | — |