CVE-2026-14448: MB connect line and Helmholz OS command injection in system_certificates view

CVE-2026-14448 · Severity: high · CVSS 7.2 · Published 2026-07-20

A vulnerability exists in mbCONNECT24 and myREX24V2 remote service platforms, which are used for industrial remote maintenance and data logging. An attacker with high-level administrative privileges can execute unauthorized system commands, potentially leading to a complete takeover of the server. This could result in the theft of sensitive industrial data, disruption of remote access services, or unauthorized changes to connected industrial equipment.

Technologies: Helmholz myREX24V2, Helmholz myREX24V2.virtual, MB connect line mbCONNECT24, MB connect line mymbCONNECT24. Vendors: Helmholz, MB connect line.

Quick answers

Is CVE-2026-14448 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-14448 being exploited in the wild.
How severe is CVE-2026-14448?
High severity, with a CVSS score of 7.2, published 20 July 2026.
Which products and versions are affected?
Helmholz myREX24V2 <= 2.20.0; Helmholz myREX24V2.virtual <= 2.20.0; MB connect line mbCONNECT24 <= 2.20.0; MB connect line mymbCONNECT24 <= 2.20.0.
Is there a fix for CVE-2026-14448?
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-2026-14448 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-14448?
Check whether you run Helmholz myREX24V2, Helmholz myREX24V2.virtual, MB connect line mbCONNECT24 or one of the others listed 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

This vulnerability is classified as an OS command injection (CWE-78) within the 'system_certificates' view of the affected platforms. The root cause is the improper neutralization of special elements in an OS command, allowing an attacker to append or inject malicious commands into system calls. Exploitation requires the attacker to have high-level administrative privileges (PR:H) and network access to the management interface. Successful exploitation grants the attacker arbitrary command execution with the privileges of the web service, potentially leading to full system compromise (total loss of confidentiality, integrity, and availability). The vulnerability affects firmware versions up to and including 2.20.0.

Affected products

  • MB connect line mbCONNECT24 <= 2.20.0
  • MB connect line mymbCONNECT24 <= 2.20.0
  • Helmholz myREX24V2 <= 2.20.0
  • Helmholz myREX24V2.virtual <= 2.20.0

Timeline

  • 2026-05-21: advisory: Initial advisory published by Helmholz (VDE-2026-058)
  • 2026-05-27: advisory: Initial advisory published by MB connect line (VDE-2026-044)
  • 2026-07-20: disclosed: CVE-2026-14448 published to the NVD dataset

References

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