CVE-2026-40817: MB connect line mbCONNECT24 SQL injection in getAlarmProfiles

CVE-2026-40817 · Severity: high · CVSS 7.5 · Published 2026-05-27

MB connect line industrial communication platforms are affected by a security vulnerability that allows unauthorized access to internal data. By sending specially crafted requests to the device's alarm profile function, an attacker can bypass security controls to read sensitive information from the system's database. This could lead to the exposure of configuration details or other confidential operational data without requiring any login credentials.

Technologies: MB connect line mbCONNECT24, MB connect line mymbCONNECT24. Vendors: MB connect line.

Quick answers

Is CVE-2026-40817 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-40817 being exploited in the wild.
How severe is CVE-2026-40817?
High severity, with a CVSS score of 7.5, published 27 May 2026.
Which products and versions are affected?
MB connect line mbCONNECT24 <= 2.20.0; MB connect line mymbCONNECT24 <= 2.20.0.
Is there a fix for CVE-2026-40817?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-40817 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-40817?
Check whether you run MB connect line mbCONNECT24 or MB connect line mymbCONNECT24 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A SQL injection vulnerability exists in the getAlarmProfiles function of MB connect line mbCONNECT24 and mymbCONNECT24 firmware versions up to and including 2.20.0. The root cause is the improper neutralization of special elements within a SQL SELECT command. An unauthenticated remote attacker can exploit this by sending malicious input to the affected endpoint, allowing them to execute arbitrary SQL queries. This results in a total loss of confidentiality as the attacker can extract data from the underlying database. The vulnerability is reachable over the network without user interaction or prior authentication.

Affected products

  • MB connect line mbCONNECT24 <= 2.20.0
  • MB connect line mymbCONNECT24 <= 2.20.0

Timeline

  • 2026-05-27: advisory: VDE-2026-044 published by CERT@VDE
  • 2026-05-27: disclosed: CVE-2026-40817 published to NVD

References

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