CVE-2021-33558 — EPSS score history & risk trends

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EPSS score history for CVE-2021-33558, 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 82.89% 10.33% -72.56%
2 2026-05-21 83.28% 82.89% -0.38%
3 2026-05-20 87.48% 83.28% -4.20%
4 2026-03-14 93.14% 87.48% -5.66%
5 2026-02-17 93.41% 93.14% -0.27%
6 2025-11-21 48.64% 93.41% +44.77%
7 2025-11-18 93.41% 48.64% -44.77%
8 2025-11-07 90.36% 93.41% +3.05%
9 2025-08-05 89.65% 90.36% +0.71%
10 2025-07-03 90.36% 89.65% -0.71%
11 2025-06-19 89.89% 90.36% +0.47%
12 2025-06-15 79.51% 89.89% +10.39%
13 2025-06-12 24.35% 79.51% +55.16%
14 2025-03-30 44.20% 24.35% -19.85%
15 2025-03-29 24.35% 44.20% +19.85%
16 2025-03-28 50.24% 24.35% -25.89%
17 2025-03-27 39.71% 50.24% +10.53%
18 2025-03-24 50.24% 39.71% -10.53%
19 2025-03-23 39.71% 50.24% +10.53%
20 2025-03-20 50.24% 39.71% -10.53%
21 2025-03-19 39.71% 50.24% +10.53%
22 2025-03-17 0.36% 39.71% +39.35%
23 2024-12-17 0.27% 0.36% +0.09%
24 2024-01-01 0.21% 0.27% +0.06%
25 2023-03-07 1.05% 0.21% -0.85%
26 2022-04-01 9.03% 1.05% -7.97%
27 2022-02-04 3.43% 9.03% +5.60%
28 2022-01-06 0.78% 3.43% +2.64%
29 2021-06-11 3.43% 0.78% -2.64%
30 2021-06-06 0.78% 3.43% +2.64%
31 2021-05-28 0.78%

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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