EUVD-2026-17644Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
|
| Impact | Without CVSS vector, CVSS score, or EPSS data, quantitative risk assessment is constrained. However, qualitative risk signals indicate moderate concern: the attack requires admin-level privileges (limiting attacker pool significantly), but successful exploitation results in database corruption (high technical impact to availability and integrity). The lack of public exploit code and KEV status suggests this is not currently being weaponized at scale. The real-world risk depends heavily on the control environment-organizations with strict admin access controls face lower risk, while those with loose admin delegation face higher risk. This is likely a maintenance/reliability issue rather than an immediate security emergency, but should be prioritized based on data sensitivity and admin access patterns within each organization. |
| Exploit ScenarioDerived | An administrator with legitimate access to the SonicWall Email Security management interface intentionally or inadvertently inputs specially crafted data into a configuration field. The application fails to validate this input before writing it to the database, resulting in data corruption that could affect email filtering, delivery, or quarantine operations. This scenario assumes either a malicious insider with admin rights or a case where legitimate admin credentials have been compromised by an external attacker. |
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Alert meAnalysisAI
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.
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.
Affected VersionsENISA
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Technical ContextAI · show details
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.
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Severity 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
DescriptionCVE.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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
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