Home/CVE/Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN user t
CVE

CVE-2026-4116

Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN user t

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

HIGH · CVSS 7.2 EPSS 0.00161
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-176Improper Handling of Unicode Encoding
▤

Affected Products & Versions

10
sonicwall sma6210 firmware< 12.4.3-03387
sonicwall sma6210 firmware>= 12.5.0 and < 12.5.0-02624
sonicwall sma6200 firmware< 12.4.3-03387
sonicwall sma6200 firmware>= 12.5.0 and < 12.5.0-02624
sonicwall sma7200 firmware< 12.4.3-03387
sonicwall sma7200 firmware>= 12.5.0 and < 12.5.0-02624
sonicwall sma7210 firmware< 12.4.3-03387
sonicwall sma7210 firmware>= 12.5.0 and < 12.5.0-02624
▣

Scoring & Timeline

7.2
HIGH · CVSS v3.1 · PSIRT@sonicwall.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Apr 2026 · 03:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0003Vendor Advisory
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