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mbCONNECT24 EUVD-2026-32138

| CVE-2026-40839 HIGH
SQL Injection (CWE-89)
2026-05-27 info@cert.vde.com GHSA-hmxw-2r33-qg6w
7.1
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/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
Low
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
May 27, 2026 - 20:22 vuln.today

DescriptionNVD

An low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the getComponentScalings function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

AnalysisAI

SQL injection in the getComponentScalings function of MB connect line's mbCONNECT24/myREX24V2 remote-maintenance platforms (all variants at version 2.20.0 and earlier) lets a remote attacker manipulate a backend SQL SELECT statement to read arbitrary database contents, causing a total loss of confidentiality. The flaw was reported by CERT@VDE (advisory VDE-2026-044, EUVD-2026-32138) and the CVSS 4.0 vector indicates the attacker holds at least a low-privilege account (PR:L), although the description text confusingly also calls it 'unauthenticated.' No public exploit identified at time of analysis, and EPSS is very low at 0.03% (11th percentile), indicating no observed mass-exploitation interest.

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RemediationAI

Within 24 hours: Inventory all deployed instances of mbCONNECT24 and myREX24V2; document current versions and confirm all are 2.20.0 or earlier; audit low-privilege account access and permissions. Within 7 days: Implement database-level access controls restricting low-privilege account queries to essential operations; deploy monitoring and alerting for SQL injection patterns in the getComponentScalings function; contact MB connect line requesting patch timeline and interim guidance. …

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EUVD-2026-32138 vulnerability details – vuln.today

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