What’s Vulnerable › Vulnerabilities

CVE-2026-4116

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-09 · updated 2026-10-26
• Weakness: CWE-176

Description

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

Affected products

• SonicWall Sma6200 Firmware: before 12.4.3-03387; from 12.5.0 before 12.5.0-02624 — fixed in 12.4.3-03387, 12.5.0-02624
• SonicWall Sma6210 Firmware: before 12.4.3-03387; from 12.5.0 before 12.5.0-02624 — fixed in 12.4.3-03387, 12.5.0-02624
• SonicWall Sma7200 Firmware: before 12.4.3-03387; from 12.5.0 before 12.5.0-02624 — fixed in 12.4.3-03387, 12.5.0-02624
• SonicWall Sma7210 Firmware: before 12.4.3-03387; from 12.5.0 before 12.5.0-02624 — fixed in 12.4.3-03387, 12.5.0-02624
• SonicWall Sma8200V: before 12.4.3-03387; from 12.5.0 before 12.5.0-02624 — fixed in 12.4.3-03387, 12.5.0-02624

How to fix

Upgrade to a fixed version: SonicWall Sma6200 Firmware 12.4.3-03387, 12.5.0-02624; SonicWall Sma6210 Firmware 12.4.3-03387, 12.5.0-02624; SonicWall Sma7200 Firmware 12.4.3-03387, 12.5.0-02624; SonicWall Sma7210 Firmware 12.4.3-03387, 12.5.0-02624; SonicWall Sma8200V 12.4.3-03387, 12.5.0-02624. Check the vendor advisory for mitigations.

References

• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0003

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