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mbCONNECT24 CVE-2026-40823

| EUVD-2026-32127 HIGH
SQL Injection (CWE-89)
2026-05-27 info@cert.vde.com GHSA-5r32-5pqx-5hhc
7.0
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
May 27, 2026 - 20:02 vuln.today

DescriptionNVD

A high privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the DevSerialReset function due to improper neutralization of special elements in a SQL UPDATE command allowing for reading the whole database and changing values in a non critical table. This can result in a total loss of confidentiality and some loss of integrity.

AnalysisAI

SQL injection in the DevSerialReset function of MB connect line / Helmholz industrial remote-access portals (mbCONNECT24, mymbCONNECT24, myREX24V2, and the .virtual variants) lets a high-privileged remote attacker read the entire backend database and modify values in a non-critical table. The flaw stems from improper neutralization of special elements within a SQL UPDATE statement (CWE-89), yielding total loss of confidentiality and partial integrity impact. …

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RemediationAI

Within 24 hours: identify and catalog all mbCONNECT24, mymbCONNECT24, myREX24V2, and virtual variants in production; restrict network access to these systems to approved administrative networks only. Within 7 days: implement database-level least-privilege access controls, disable the DevSerialReset function if not operationally required, and enable comprehensive SQL audit logging on all queries. …

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CVE-2026-40823 vulnerability details – vuln.today

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