Is CVE-2026-40814 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-40814 being exploited in the wild.

How severe is CVE-2026-40814?

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-2026-40814?

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-2026-40814 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-40814?

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.

CVE-2026-40814: MB connect line mbCONNECT24 SQL injection in dataapi.php

Q: Is there a fix for CVE-2026-40814?

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.

Q: How is CVE-2026-40814 attacked?

It is attacked over the network, in a network appliance.

Q: Am I affected by CVE-2026-40814?

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.

CVE-2026-40814 · Severity: high · CVSS 7.5 · Published 2026-05-27

MB connect line mbCONNECT24 and mymbCONNECT24, platforms used for remote access and industrial monitoring, are affected by a security flaw that allows unauthorized access to their internal databases. An attacker can exploit this to steal sensitive information without needing a username or password. This could lead to a total loss of data confidentiality, potentially exposing industrial configurations or customer information.

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

Quick answers

Is CVE-2026-40814 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-40814 being exploited in the wild.
How severe is CVE-2026-40814?: 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-2026-40814?: 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-2026-40814 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-40814?: 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 '_mb24confi_getTagAlarm' function within the 'dataapi.php' file of MB connect line mbCONNECT24 and mymbCONNECT24. The issue stems from improper neutralization of special elements in a SQL SELECT command, allowing an unauthenticated remote attacker to execute arbitrary SQL queries via the network. Successful exploitation enables the attacker to read sensitive data from the database, resulting in a total loss of confidentiality. The vulnerability affects firmware versions up to and including 2.20.0. Users are advised to contact the vendor for patch information or upgrade to a secure version if available.

Affected products

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

Timeline

2026-05-27: disclosed: Initial advisory publication by CERT VDE
2026-05-27: advisory: NVD publication of CVE-2026-40814

References

https://www.certvde.com/en/advisories/VDE-2026-044/

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