Vulnerability · Published Nov 20, 2025 · Assigned by sonicwall
CVE-2025-40604
Medium 6.5
In plain English
A medium-severity security flaw in Email Security from SonicWall. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.2%top 89.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SonicWall | Email Security | 10.0.33.8195 and earlier versions |
Weakness: CWE-494 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0018 vendor-advisory