vulnerability
SonicWall Email Security: CVE-2025-40604: Download of Code Without Integrity Check Vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:M/C:C/I:C/A:C) | Nov 19, 2025 | Apr 29, 2026 | May 25, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:M/C:C/I:C/A:C)
Published
Nov 19, 2025
Added
Apr 29, 2026
Modified
May 25, 2026
Description
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.
Solution
sonicwall-email-security-upgrade-100348215
Rapid7 Labs
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