CVE-2021-34580

HIGH

Mbconnectline Mbconnect24 < 2.9.0 - Information Disclosure

Title source: rule

Description

In mymbCONNECT24, mbCONNECT24 <= 2.9.0 an unauthenticated user can enumerate valid backend users by checking what kind of response the server sends for crafted invalid login attempts.

References (1)

[Third Party Advisory] https://cert.vde.com/en/advisories/VDE-2021-037/

Scores

CVSS v3 7.5

EPSS 0.0030

EPSS Percentile 53.1%

Attack Vector NETWORK

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

Details

CWE

CWE-204 CWE-203

Status published

Products (2)

mbconnectline/mbconnect24 < 2.9.0

mbconnectline/mymbconnect24 < 2.9.0

Published Oct 27, 2021

Tracked Since Feb 18, 2026