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01 Record

CVE-2025-3091

MB connect line: Authorization bypass in mbCONNECT24/mymbCONNECT24

HighPUBLISHEDCNA: CERTVDE
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

02 Description

MB connect line: Authorization bypass in mbCONNECT24/mymbCONNECT24

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.37% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 31.5% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-06-24 08:10Z1 YR AGO
Last updated
2025-06-24 13:56Z1 YR AGO
Reserved
2025-04-01
Assigning CNA
CERTVDE
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-639Authorization Bypass Through User-Controlled KeyBase
Data version
5.1
Document digest
5d56df2b9a4c27bb9f1735590ca7aed1b4576de92c9da64a781723b46a51b88c

05 Affected products

VendorProductVersionsPlatforms
MB connect linembCONNECT240 to < 2.16.5—
MB connect linemymbCONNECT240 to < 2.18.0, 0 to < 2.16.5—
HelmholzmyREX240 to < 2.18.0, 0 to < 2.16.5—
HelmholzmyREX24.virtual0 to < 2.18.0, 0 to < 2.16.5—

06 References