An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2.

published 2021-02-16 5y ago modified 2026-06-17 4mo ago also EUVD-2020-23232

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. The login pages bruteforce detection is disabled by default.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-061-03 updated 2021-03-02 cvss 5.9

MB connect line mbCONNECT24, mymbCONNECT24

MB connect line mymbCONNECT24 <= 2.6.1
affected: fixed in 2.71, mitigation “CVE-2020-35565: Activate bruteforce detection via Security → Fail2Ban → WebLogin” cve.org

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-307 Improper Restriction of Excessive Authentication Attempts

References

mbconnectline.com /security-advice/
vendor-advisory
cert.vde.com /de-de/advisories/vde-2021-003
third-party-advisory

Sources

CVE List CVE-2020-35565
NVD CVE-2020-35565

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