Which versions of mbCONNECT24 are affected by EUVD-2026-32138?

MB connect line's mbCONNECT24 and myREX24V2 remote-maintenance platforms (all versions through 2.20.0) contain an unpatched SQL injection vulnerability in the getComponentScalings function…

How to fix or mitigate EUVD-2026-32138?

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. Within 30 days: Establish network segmentation isolating these platforms; conduct comprehensive access review enforcing principle-of-least-privilege; prepare upgrade plan for deployment upon patch availability.

mbCONNECT24 EUVD-2026-32138

Q: What is the CVSS score of EUVD-2026-32138?

EUVD-2026-32138 has a CVSS 4.0 base score of 7.1 (High). CVSS vector: 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. EPSS exploitation probability: 0.0%.

| CVE-2026-40839 HIGH

SQL Injection (CWE-89)

2026-05-27 info@cert.vde.com

GHSA-hmxw-2r33-qg6w

SQLi

7.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

May 27, 2026 - 20:22 vuln.today

DescriptionCVE.org

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.

Technical ContextAI

The vulnerability is a classic CWE-89 SQL injection: the getComponentScalings function builds a SQL SELECT query by concatenating attacker-controllable input without proper neutralization of special elements (quotes, comments, UNION/boolean operators), allowing the query structure to be altered. The affected software is MB connect line's (now part of Red Lion) cloud/remote-access portal family - mbCONNECT24, mymbCONNECT24, myREX24V2, and the self-hosted myREX24V2.virtual appliance - which are M2M remote-maintenance and industrial VPN gateway platforms used to reach OT/ICS equipment. Because the CVSS vector scores only confidentiality impact (VC:H) with no integrity or availability impact (VI:N/VA:N), the injection point appears to be a read-oriented SELECT context suitable for data extraction (e.g., UNION-based or blind retrieval) rather than data modification.

RemediationAI

Consult the vendor advisory CERT@VDE VDE-2026-044 (https://www.certvde.com/en/advisories/VDE-2026-044/) for the fixed release and upgrade beyond 2.20.0 - note that no exact fixed version is present in the available data, so the specific patched version must be confirmed from that advisory before deployment. As compensating controls until patched: restrict network reachability of the management/portal interface to trusted administrative networks or VPN only (these gateways should never be broadly internet-exposed), enforce least-privilege on portal accounts and audit/revoke unneeded low-privilege users since the CVSS vector indicates an account is required, and place a WAF or reverse proxy in front of the portal to filter SQL metacharacters on requests reaching the getComponentScalings endpoint. Trade-offs: network restriction may impede legitimate remote-maintenance access workflows, and WAF filtering can produce false positives that block valid remote-management traffic, so test rules against normal usage before enforcing.