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Vulnerability record · CVE-2026-4116 · published 9 April 2026

CVE-2026-4116: Sonicwall sma6210 firmware vulnerability

Sonicwall · Sma6210 Firmware

Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN user to bypass Workplace/Connect Tunnel TOTP authentication.

7.2 CVSS 3.1 High EPSS 0.71% · top 48.5% CWE-176 · CWE-176
7.2CVSS 3.1 base score
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN user to bypass Workplace/Connect Tunnel TOTP authentication.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0003 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-83548SonicWall SMA1000 pre-auth SSRF via alternate access pathThe SMA1000 Appliance Work Place interface exposes an unintended alternate access path that allows server-side request forgery before authentication.…KEVEPSS 8.8%analysed10.0CVE-2026-15409SonicWall SMA1000 Work Place SSRF allows unauthenticated requestsThe SMA1000 Appliance Work Place interface contains a server-side request forgery flaw (CWE-918) that lets the appliance be induced to make requests …KEVEPSS 6.8%analysed9.8CVE-2025-23006SonicWall SMA1000 pre-auth deserialization allows OS command executionThe SMA1000 Appliance Management Console and Central Management Console deserialize untrusted data before authentication, which in specific condition…KEVEPSS 23%analysed7.8CVE-2026-83549SonicWall SMA1000 AMC OS Command InjectionThe SMA1000 Appliance Management Console contains an OS command injection flaw (CWE-78) that lets an authenticated administrator execute arbitrary op…KEVEPSS 11%analysed7.2CVE-2026-15410SonicWall SMA1000 AMC code injection allows OS command executionThe SMA1000 Appliance Management Console (AMC) contains a post-authentication code injection flaw (CWE-94) that, under specific conditions, lets an a…KEVEPSS 12%analysed6.6CVE-2025-40602SonicWall SMA1000 management console missing authorization privilege escalationThe SonicWall SMA1000 appliance management console (AMC) contains a local privilege escalation flaw caused by insufficient authorization, mapped to C…KEVEPSS 2.8%analysed7.2CVE-2026-4112Sonicwall sma6210 firmware sql injection vulnerabilityImproper neutralization of special elements used in an SQL command (“SQL Injection”) in SonicWall SMA1000 series appliances allows a remote authentic…EPSS 0.53%7.2CVE-2026-4113Sonicwall sma6210 firmware vulnerabilityAn observable response discrepancy vulnerability in the SonicWall SMA1000 series appliances allows a remote attacker to enumerate SSL VPN user creden…EPSS 0.60%

Source: NIST National Vulnerability Database (record CVE-2026-4116), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.