# CVE-2026-40811: MB connect line mbCONNECT24 SQL injection in ssoabstractservice

Source: https://junglewise.ai/threats/cve-2026-40811-mb-connect-line-mbconnect24-sql-injection-in-ssoabstractservice  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-27. Updated: 2026-05-27  
License: CC BY 4.0 with a link back

CVE-2026-40811 · Severity: high · CVSS 7.5 · Published 2026-05-27

MB connect line's remote access platforms, used for industrial communication and machine maintenance, contain a security flaw in their single sign-on service. An unauthenticated attacker can exploit this to gain unauthorized access to the underlying database. This could lead to a total loss of confidentiality for sensitive operational data and system configurations.

Technologies: [MB connect line mbCONNECT24](https://junglewise.ai/threats/technologies/mbconnect24), [MB connect line mymbCONNECT24](https://junglewise.ai/threats/technologies/mymbconnect24). Vendors: [MB connect line](https://junglewise.ai/threats/vendors/mb-connect-line).

## Quick answers

**Is CVE-2026-40811 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40811 being exploited in the wild.

**How severe is CVE-2026-40811?** 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-2026-40811?** 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-2026-40811 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-40811?** 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 'ssoabstractservice' component of MB connect line mbCONNECT24 and mymbCONNECT24 firmware versions up to and including 2.20.0. The flaw is caused by improper neutralization of special elements within a SQL SELECT command. An unauthenticated remote attacker can exploit this over the network without user interaction to execute arbitrary SQL queries. Successful exploitation allows the attacker to read sensitive information from the database, resulting in a total loss of confidentiality.

## Affected products

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

## Timeline

- 2026-05-27: disclosed
- 2026-05-27: advisory

## References

- [https://www.certvde.com/en/advisories/VDE-2026-044/](https://www.certvde.com/en/advisories/VDE-2026-044/)

## Related threats

- [MB connect line mbCONNECT24 SQL injection in getVpnData](https://junglewise.ai/threats/cve-2026-40820-a-high-privileged-remote-attacker-can-exploit-an-unauthenticated)
- [MB connect line and Helmholz OS command injection in system_certificates view](https://junglewise.ai/threats/cve-2026-14448-mb-connect-line-and-helmholz-os-command-injection-in-system)
- [MB connect line mbCONNECT24 forced browsing in configuration settings](https://junglewise.ai/threats/cve-2026-10521-mb-connect-line-mbconnect24-forced-browsing-in-configuration)
- [MB connect line mbCONNECT24 SQL injection in user_alarmprofile view](https://junglewise.ai/threats/cve-2026-40849-mb-connect-line-mbconnect24-sql-injection-in-user-alarmprofile)
- [MB connect line mbCONNECT24 SQL injection in tag view](https://junglewise.ai/threats/cve-2026-40848-mb-connect-line-mbconnect24-sql-injection-in-tag-view)