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CVE-2025-40604

9.8
CRITICALCVSS v3.1 Base Score
0.03%
LOW RiskEPSS (7th percentile)

Download of Code Without Integrity Check Vulnerability in the SonicWall Email Security appliance loads root filesystem images without verifying signatures, allowing attackers with VMDK or datastore access to modify system files and gain persistent arbitrary code execution.

Published: 11/20/2025
Modified: 12/12/2025
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Vulnerability Summary

CVSS v3 Score

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score (Exploitation Probability)

0.03%LOW Exploitation Risk
7th percentile

This vulnerability has a 0.03% probability of being exploited in the next 30 days, ranking higher than 7% of all scored CVEs.

CWE Classification

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