CVE-2021-4259 — EPSS score history & risk trends

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EPSS score history for CVE-2021-4259, showing historical risk changes and exploitation probability trends for vulnerability prioritization and security analysis.

EPSS history (newest first)

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.56% 0.78% +0.21%
2 2025-12-30 0.30% 0.56% +0.27%
3 2025-12-28 0.09% 0.30% +0.21%
4 2025-11-21 0.56% 0.09% -0.48%
5 2025-11-18 0.07% 0.56% +0.50%
6 2025-03-30 0.16% 0.07% -0.09%
7 2025-03-29 0.07% 0.16% +0.09%
8 2025-03-17 0.70% 0.07% -0.64%
9 2024-12-17 0.46% 0.70% +0.25%
10 2024-07-26 0.35% 0.46% +0.11%
11 2024-01-21 0.33% 0.35% +0.02%
12 2023-12-26 0.17% 0.33% +0.17%
13 2023-11-19 0.14% 0.17% +0.03%
14 2023-03-07 0.95% 0.14% -0.81%
15 2022-12-25 0.89% 0.95% +0.07%
16 2022-12-20 0.89%

EPSS probability trend

Legend EPSS Score (left axis) Delta (right axis) Up vs prior day Down vs prior day Unchanged vs prior day
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