CVE-2021-34817 — EPSS score history & risk trends

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EPSS score history for CVE-2021-34817, 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 1.15% 1.34% +0.19%
2 2026-06-06 1.16% 1.15% -0.01%
3 2026-03-10 0.85% 1.16% +0.30%
4 2025-11-21 0.47% 0.85% +0.38%
5 2025-11-18 0.85% 0.47% -0.38%
6 2025-03-30 1.31% 0.85% -0.46%
7 2025-03-29 0.85% 1.31% +0.46%
8 2025-03-17 0.18% 0.85% +0.68%
9 2024-02-23 0.15% 0.18% +0.03%
10 2023-03-07 1.21% 0.15% -1.07%
11 2022-04-01 4.13% 1.21% -2.92%
12 2022-02-04 5.60% 4.13% -1.47%
13 2022-01-06 1.31% 5.60% +4.30%
14 2021-07-20 1.31%

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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