CVE-2026-4116
Received Received - Intake
TOTP Bypass via Unicode Handling Flaw in SonicWall SMA

Publication date: 2026-04-09

Last updated on: 2026-04-13

Assigner: SonicWALL, Inc.

Description
Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN user to bypass Workplace/Connect Tunnel TOTP authentication.
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Meta Information
Published
2026-04-09
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2026-04-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-4116
EUVD
EUVD-2026-20908
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
sonicwall sma1000 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-176 The product does not properly handle when an input contains Unicode encoding.
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Executive Summary

This vulnerability involves improper handling of Unicode encoding in SonicWall SMA1000 series appliances. It allows a remote authenticated SSLVPN user to bypass the Workplace/Connect Tunnel TOTP (Time-based One-Time Password) authentication mechanism.

Impact Analysis

An attacker who is a remote authenticated SSLVPN user could exploit this vulnerability to bypass the TOTP authentication, potentially gaining unauthorized access to the network or resources that are protected by this authentication method.

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