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mbCONNECT24 CVE-2026-40840

| EUVD-2026-32139 HIGH
SQL Injection (CWE-89)
2026-05-27 info@cert.vde.com GHSA-mvcv-v4fh-22c9
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 - 20:57 vuln.today

DescriptionNVD

An low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the VerifyCreateLicences 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 VerifyCreateLicences function of MB connect line's mbCONNECT24 / myREX24 remote-maintenance platforms (including the myREX24V2.virtual and mymbCONNECT24 variants, versions up to and including 2.20.0) lets a remote attacker holding a low-privilege account inject crafted input into a SQL SELECT statement and read arbitrary database contents, causing total loss of confidentiality. The CVSS 4.0 base score is 7.1 with high confidentiality impact but no integrity or availability impact. …

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RemediationAI

Within 24 hours: Inventory all mbCONNECT24 and myREX24 systems in use and verify version numbers (vulnerable: ≤2.20.0). Within 7 days: Contact MB connect line for patch availability and timeline; implement network-level access restrictions using firewalls and VPN requirements; audit and restrict low-privilege account permissions on affected systems. …

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CVE-2026-40840 vulnerability details – vuln.today

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