CVE-2025-40604
moderate-risk
Published 2025-11-20
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.
Do I need to act?
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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (5)
Affected Vendors
References (1)
Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0018
44
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
0/34 · Minimal
Exposure
12/34 · Low