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mbCONNECT24 EUVDEUVD-2026-32130

| CVE-2026-40826 MEDIUM
SQL Injection (CWE-89)
2026-05-27 info@cert.vde.com GHSA-gxh9-w3r9-9qj2
6.9
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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
High
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
May 27, 2026 - 21:36 vuln.today

DescriptionCVE.org

A high privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the dsgvo_contracts view 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 dsgvo_contracts view of mbCONNECT24 and related industrial remote access platforms (versions up to and including 2.20.0) enables a high-privileged remote attacker to exfiltrate confidential data from the underlying database without integrity or availability impact. The vulnerability (CWE-89, CVSS 4.0: 6.9) is constrained by the PR:H requirement - the attacker must already hold high-privileged credentials - which substantially limits realistic attack surface in well-managed deployments. No public exploit or active exploitation has been identified; CISA SSVC rates exploitation as none and EPSS stands at 0.03% (10th percentile).

Technical ContextAI

The root cause is CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), manifesting in a SQL SELECT operation against the dsgvo_contracts database view - a component handling GDPR/data protection contract records (DSGVO is the German abbreviation for the EU General Data Protection Regulation). The affected platforms - mbCONNECT24, mymbCONNECT24, myREX24V2, and myREX24V2.virtual - are industrial IoT remote access and VPN gateway solutions from MB connect line GmbH, commonly deployed in OT/ICS environments for secure remote maintenance. The CVSS 4.0 vector AV:N/AC:L/AT:N/PR:H/UI:N confirms the attack is network-accessible, requires low complexity, has no additional preconditions (AT:N), and needs no user interaction, but critically mandates high-privileged platform access. The scope impact is confined to confidentiality (VC:H/VI:N/VA:N/SC:N/SI:N/SA:N), indicating the injection enables database read access without crossing security scope boundaries into integrity or availability.

RemediationAI

Consult the CERT VDE advisory VDE-2026-044 at https://www.certvde.com/en/advisories/VDE-2026-044/ for the vendor-released patch; the exact fixed version is not independently confirmed from available data but a patch is indicated as available per the advisory. As an immediate compensating control, enforce the principle of least privilege for all mbCONNECT24 and myREX24V2 administrative accounts - since PR:H is a hard prerequisite, reducing the number of high-privileged account holders directly shrinks the exploitable attack surface with no functional trade-off. Additionally, restrict management interface network access to trusted administrative networks only, removing it from any internet-facing or broad-LAN exposure; this addresses AV:N without affecting operational use. Audit and rotate all high-privileged credentials as a precaution, particularly if account compromise is suspected. In environments subject to GDPR, assess whether unauthorized access to the dsgvo_contracts view constitutes a reportable data exposure event under Article 33.

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EUVD-2026-32130 vulnerability details – vuln.today

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