CVE-2025-3091 - CVE House
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Status published High CVE-2025-3091

MB connect line: Authorization bypass in mbCONNECT24/mymbCONNECT24

Vulnerability Description

An low privileged remote attacker in possession of the second factor for another user can login as that user without knowledge of the other user`s password.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Peter Husted Simonsen
  • Irwin Przeperski
  • Eviden

Affected Vendor

MB connect line

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Affected Software

mbCONNECT24, mymbCONNECT24, myREX24, myREX24.virtual
Vulnerable Versions:
0

Timeline

Official Publish: June 24th, 2025
Last Modified: June 24th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)