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Helmholz: Multiple vulnerabilites in myREX24 and myREX24.virtual

VDE-2023-008
Last update
15.05.2023 14:06
Published at
15.05.2023 14:06
Vendor(s)
Helmholz GmbH & Co. KG
External ID
VDE-2023-008
CSAF Document
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Summary

Two vulnerabilites have been discovered in myREX24 and myREX24.virtual in all versions through 2.13.3.

Impact

Please consult the CVE Entries.

Affected Product(s)

Model no. Product name Affected versions
myREX24 <=2.13.3
myREX24.virtual <=2.13.3

Vulnerabilities

Expand / Collapse all

Published
25.08.2026 10:58
Severity
8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
Authorization Bypass Through User-Controlled Key (CWE-639)
Summary

An Authorization Bypass vulnerability was found in MB Connect Lines mbCONNECT24, mymbCONNECT24 and Helmholz' myREX24 and myREX24.virtual version <= 2.13.3. An authenticated remote user with low privileges can change the password of any user in the same account. This allows to take over the admin user and therefore fully compromise the account.

References
cve.org | nvd.nist.gov

Published
25.08.2026 10:58
Severity
4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness
Incorrect Authorization (CWE-863)
Summary

Exposure of Sensitive Information to an unauthorized actor vulnerability in MB Connect Lines mbCONNECT24, mymbCONNECT24 and Helmholz' myREX24 and myREX24.virtual in versions <=2.13.3 allow an authorized remote attacker with low privileges to view a limited amount of another accounts contact information.

References
cve.org | nvd.nist.gov

Mitigation

Mitigation for CVE-2023-0985:
If you have MFA enabled on the admin user, the password will still be set, but the attacker will be unable to login as the MFA is still in place.

Remediation

Update to latest Version: 2.13.4

Acknowledgments

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

Revision History

Version Date Summary
1 15.05.2023 14:06 Initial revision.