CVE-2026-4114 | SonicWall SMA1000 AMC TOTP Authentication unicode encoding (SNWLID-2026-0003)

VDB-356587 · CVE-2026-4114 · SNWLID-2026-0003 SONICWALL SMA1000 AMC TOTP AUTHENTICATION UNICODE ENCODING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.3 $0-$5k 0.49+ Summaryinfo A vulnerability was found in SonicWall SMA1000. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component AMC TOTP Authentication. This manipulation causes improper handling of unicode encoding. This vulnerability is tracked as CVE-2026-4114. The attack is possible to be carried out remotely. No exploit exists. Detailsinfo A vulnerability was found in SonicWall SMA1000 (version unknown). It has been declared as critical. Affected by this vulnerability is an unknown function of the component AMC TOTP Authentication. The manipulation with an unknown input leads to a improper handling of unicode encoding vulnerability. The CWE definition for the vulnerability is CWE-176. The product does not properly handle when an input contains Unicode encoding. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: Improper handling of Unicode encoding in SonicWall SMA1000 series appliances allows a remote authenticated SSLVPN admin to bypass AMC TOTP authentication. It is possible to read the advisory at psirt.global.sonicwall.com. This vulnerability is known as CVE-2026-4114 since 03/13/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/09/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Firewall Software Vendor SonicWall Name SMA1000 License commercial Website Vendor: https://www.sonicwall.com/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.3 VulDB Base Score: 6.3 VulDB Temp Score: 6.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Improper handling of unicode encoding CWE: CWE-176 / CWE-172 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/13/2026 CVE reserved 04/09/2026 +26 days Advisory disclosed 04/09/2026 +0 days VulDB entry created 04/09/2026 +0 days VulDB entry last update Sourcesinfo Vendor: sonicwall.com Advisory: SNWLID-2026-0003 Status: Confirmed CVE: CVE-2026-4114 (🔒) GCVE (CVE): GCVE-0-2026-4114 GCVE (VulDB): GCVE-100-356587 Entryinfo Created: 04/09/2026 17:36 Changes: 04/09/2026 17:36 (53) Complete: 🔍 Cache ID: 99:F04:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸