EUVD-2026-17644Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
Primary rating from Vendor (sonicwall) · only source for this CVE.
CVSS VectorVendor: sonicwall
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability exists in the SonicWall Email Security appliance due to improper input sanitization that may lead to data corruption, allowing a remote authenticated attacker as admin user could exploit this issue by providing crafted input that corrupts application database.
AnalysisAI
Database corruption in SonicWall Email Security appliance via improper input sanitization allows authenticated admin users to corrupt the application database by submitting crafted input. The vulnerability requires valid administrative credentials and affects all versions of SonicWall Email Security as indicated by the CPE wildcard matching. No CVSS scoring, public exploit code, or CISA KEV status is available at this time, limiting precise risk quantification.
Technical ContextAI
The vulnerability stems from CWE-20 (Improper Input Validation), a fundamental class of flaws where user-supplied input is not properly validated or sanitized before being processed by the application. In the SonicWall Email Security appliance, this weakness is exploited through the administrative interface where crafted input parameters are accepted and used to interact with the application database without adequate filtering or escaping. The issue does not involve authentication bypass-it requires existing admin credentials-but rather represents a post-authentication abuse of the input handling mechanism that can result in data integrity compromise of the email security database.
RemediationAI
Contact SonicWall PSIRT or refer to the official advisory at https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0002 for specific patch availability and version guidance, as no fixed version number is currently provided in available sources. As an immediate workaround, restrict and audit administrative access to the Email Security appliance, limiting the number of accounts with admin privileges and implementing robust logging of admin actions that modify input parameters affecting the database. Organizations should monitor SonicWall's security advisories for patch release announcements and apply updates as soon as they become available.
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External POC / Exploit Code
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