CVE-2026-3469
Received Received - Intake
Denial-of-Service in SonicWall Email Security via Input Validation

Publication date: 2026-03-31

Last updated on: 2026-04-13

Assigner: SonicWALL, Inc.

Description
A denial-of-service (DoS) vulnerability exists due to improper input validation in the SonicWall Email Security appliance, allowing a remote authenticated attacker as admin user to cause the application to become unresponsive.
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Meta Information
Published
2026-03-31
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2026-04-01
EPSS Evaluated
2026-06-15
NVD
CVE-2026-3469
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
sonicwall email_security to 10.0.35.8405 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability is a denial-of-service (DoS) issue in the SonicWall Email Security appliance. It occurs because the application does not properly validate input, which allows a remote attacker who is authenticated as an admin user to cause the application to become unresponsive.

Impact Analysis

The impact of this vulnerability is that an attacker with admin credentials can make the SonicWall Email Security appliance unresponsive, leading to a denial-of-service condition. This could disrupt email security services and potentially affect business operations that rely on this appliance.

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