CVE-2026-40823
Medium
Description
A high privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the DevSerialReset function due to improper neutralization of special elements in a SQL UPDATE command allowing for reading the whole database and changing values in a non critical table. This can result in a total loss of confidentiality and some loss of integrity.
SeverityMedium
CVSS5.5
Exploit probability—
ProductmbCONNECT24
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-89SQL injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| MB connect line mbCONNECT24 | v ≤ 2.20.0, 2.20.0 | — |
| MB connect line mymbCONNECT24 | v ≤ 2.20.0, 2.20.0 | — |
| Helmholz myREX24V2 | v ≤ 2.20.0, 2.20.0 | — |
| Helmholz myREX24V2.virtual | v ≤ 2.20.0, 2.20.0 | — |
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