Back to overview

Helmholz: Multiple Vulnerabilities in myREX24V2/myREX24V2.virtual

VDE-2026-141
Last update
11/10/2026 11:00
Published at
11/10/2026 11:00
Vendor(s)
Helmholz GmbH & Co. KG
External ID
VDE-2026-141
CSAF Document

Summary

Multiple vulnerabilities have been discovered in Helmholz myREX24V2/myREX24V2.virtual that could allow RCE, DoS or information leakage.

Impact

Multiple vulnerabilities can lead to a total loss of confidentiality, integrity and availability.

See CVE entries for details.

Affected Product(s)

Model no. Product name Affected versions
Helmholz myREX24V2 Firmware <2.21.0
myREX24V2.virtual Firmware <2.21.0

Vulnerabilities

Expand / Collapse all

Published
11/10/2026 09:50
Weakness
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CWE-79)
Summary

An unauthenticated remote attacker can perform a XSS attack on a logged in backend user allowing for execution of multiple critical system actions. This could allow an attacker to shutdown the server or restore an uploaded backup. This can result in a loss of integrity and availability.

References

Published
11/10/2026 09:50
Weakness
Cross-Site Request Forgery (CSRF) (CWE-352)
Summary

An unauthenticated remote attacker can perform a CSRF attack on a logged in backend user allowing for execution of multiple critical system actions. This could allow an attacker to shutdown the server or restore an uploaded backup. This can result in a loss of integrity and availability.

References

Published
11/10/2026 09:50
Weakness
Weak Password Recovery Mechanism for Forgotten Password (CWE-640)
Summary

An unauthenticated remote attacker can perform password resets for any user with known username and email without rate limiting. This can result in a total loss of availabilit since the password will be reseted.

References

Published
11/10/2026 09:50
Weakness
Use of Default Password (CWE-1393)
Summary

The backups created by the application use a weak static password allowing an unauthenticated remote attacker to access their content. This can result in a total loss of confidentiality.

References

Published
11/10/2026 09:50
Weakness
Allocation of Resources Without Limits or Throttling (CWE-770)
Summary

An unauthenticated remote attacker can perform a DoS in the backends backup creation function. This can result in a total loss of availability.

References

Published
11/10/2026 09:50
Weakness
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
Summary

A high privileged remote attacker can perform a code injection in the backends backup restore function leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

References

Published
11/10/2026 09:50
Weakness
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
Summary

A high privileged remote attacker can perform an OpenSSL code injection in the backends ImportPKCS12 function leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

References

Published
11/10/2026 09:50
Weakness
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
Summary

A high privileged remote attacker can perform an OpenSSL code injection in the frontends device importer function leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

References

Published
11/10/2026 09:50
Weakness
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
Summary

A high privileged remote attacker can perform a code injection in the backends patch activate function leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

References

Published
11/10/2026 09:50
Weakness
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
Summary

A high privileged remote attacker can perform a code injection in the backends network auth function leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

References

Published
11/10/2026 09:50
Weakness
Authorization Bypass Through User-Controlled Key (CWE-639)
Summary

An unauthenticated remote attacker can perform an authentication bypass on the com_check function, potentially triggering traffic on other systems and email alerts. This can result in some loss of availability due to higher system loads.

References

Published
11/10/2026 09:50
Weakness
Unrestricted Upload of File with Dangerous Type (CWE-434)
Summary

A high privileged remote attacker can upload arbitrary files to a guessable location. This can result in a loss of availability and might be chained with other vulnerabilities.

References

Remediation

Update the myREX24V2/myREX24V2.virtual instance to version 2.21.0.

Acknowledgments

Helmholz GmbH & Co. KG thanks the following parties for their efforts:

Revision History

Version Date Summary
1.0.0 11/10/2026 11:00 Initial revision.