CVE-2025-40604
CriticalSummary
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.
Risk Assessment
An attacker can gain full control of the appliance, leading to system integrity compromise and potential lateral movement.
Recommendation
Apply vendor updates and restrict access to VMDK and datastores.
Other vulnerabilities in SonicWall Email Security
See all- CVE-2021-20023MediumActively exploited
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.
- CVE-2021-20022HighActively exploited
Vulnerability in SonicWall Email Security version 10.0.9.x allows a post-authenticated attacker to upload an arbitrary file to the remote host.
- CVE-2021-20021CriticalActively exploited
A vulnerability in the SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.
- CVE-2026-66150High
Improper Control of Generation of Code ('Code Injection') Vulnerability in the SonicWall Email Security appliance allows an authenticated attacker with access to the SonicWall Email Security restricted CLI can inject arbitrary OS commands that execute as root via SNMP.
- CVE-2026-66149High
Improper Control of Generation of Code ('Code Injection') Vulnerability in the SonicWall Email Security appliance allows an authenticated attacker with access to the SonicWall Email Security restricted CLI can inject arbitrary OS commands that execute as root via netmask.
- CVE-2026-3470Low
The SonicWall Email Security appliance has a vulnerability due to improper input sanitization that may lead to data corruption. A remote authenticated attacker with admin privileges can exploit this by providing crafted input that corrupts the application database.
- CVE-2026-3469Low
SonicWall Email Security has a DoS vulnerability due to improper input validation, exploitable by a remote authenticated admin user.
- CVE-2026-3468Medium
A stored XSS vulnerability exists in SonicWall Email Security due to improper input neutralization. A remote authenticated admin user can execute arbitrary JavaScript code.
Original NVD description (English source)
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.