Which versions of mbCONNECT24 are affected by EUVD-2026-32142?

MB connect line's remote maintenance platforms (mbCONNECT24, mymbCONNECT24, myREX24V2/myREX24V2.virtual) versions 2.20.0 and earlier contain a SQL injection vulnerability in the alarming view that…

How to fix or mitigate EUVD-2026-32142?

Within 24 hours: Audit logs for anomalous database queries from low-privileged accounts; restrict network access to affected portals to essential users only. Within 7 days: Enforce database-level role-based access controls limiting low-privileged account query scope; deploy WAF rules to block SQL injection patterns targeting the alarming view. Within 30 days: Monitor vendor security advisories for patch availability; initiate evaluation of alternative remote maintenance solutions or plan upgrade timeline to unsupported versions.

mbCONNECT24 EUVD-2026-32142

Q: What is the CVSS score of EUVD-2026-32142?

EUVD-2026-32142 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-2026-40843 HIGH

SQL Injection (CWE-89)

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

GHSA-jmjj-cmh5-j2g5

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 - 20:23 vuln.today

DescriptionCVE.org

An low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the alarming 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 alarming view of MB connect line's remote-maintenance platforms - mbCONNECT24, mymbCONNECT24, and the myREX24V2/myREX24V2.virtual portals up to and including version 2.20.0 - lets a remote, low-privileged user smuggle crafted input into a SQL SELECT statement and read arbitrary database contents, resulting in total loss of confidentiality. The CVSS 4.0 vector (PR:L) indicates a low-privileged account is required, even though the advisory text calls the flaw 'unauthenticated' - a discrepancy worth verifying. No public exploit identified at time of analysis, and EPSS is very low (0.03%, 11th percentile), so this is a credible but not actively exploited issue.

Technical ContextAI

The affected products are industrial remote-access and VPN portal solutions from MB connect line (now part of Red Lion): the mbCONNECT24 server platform and the myREX24V2 cloud portal, including their .virtual deployment variants. The root cause is CWE-89, improper neutralization of special elements used in an SQL command: the 'alarming view' component (the alarm/event management feature) incorporates attacker-controlled input directly into a SQL SELECT query without adequate sanitization or parameterization. Because the injection sits in a SELECT statement and the CVSS impact is confidentiality-only (VC:H, VI:N, VA:N), an attacker can extract data the query touches but cannot - through this flaw alone - modify records or disrupt availability.

RemediationAI

Upgrade to a fixed release as published in CERT@VDE advisory VDE-2026-044 (https://www.certvde.com/en/advisories/VDE-2026-044/); since all listed versions are ≤2.20.0, the fix is expected in a release above 2.20.0, but no exact fixed version is present in the available data and a released patched version is not independently confirmed - obtain the precise target version from the advisory. Until patched, restrict network reachability of the management/portal interface to trusted operators and management networks only (these are remote-access products often internet-exposed, so reducing exposure directly cuts attack surface), and limit who holds low-privileged portal accounts since the CVSS vector indicates an account is needed (PR:L). Where supported, enable and monitor logging on the alarming/alarm-management view for anomalous query patterns, and apply least-privilege to the database account backing the portal so a successful SELECT injection reaches as little data as possible; the trade-off is added operational friction and that these controls limit, but do not eliminate, the confidentiality exposure.