CVE-2026-40836: Helmholz MYREX24V2

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

An low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the inmessage model due to improper neutralization of special elements in a SQL DELETE command allowing for reading the whole database and deleting entries in a non critical table. This can result in a total loss of confidentiality and some loss of integrity.

Affected products

• Helmholz MYREX24V2: from 0.0.0, up to and including 2.20.0; version 2.20.0 only
• Helmholz MYREX24V2.VIRTUAL: from 0.0.0, up to and including 2.20.0; version 2.20.0 only
• Mb Connect Line MBCONNECT24: from 0.0.0, up to and including 2.20.0; version 2.20.0 only
• Mb Connect Line MYMBCONNECT24: from 0.0.0, up to and including 2.20.0; version 2.20.0 only

Published 2026-05-27. Last modified 2026-06-17.