Auth bypass in Mb Connect Line Mbconnect24

CVE-2024-23943

An unauthenticated remote attacker can gain access to the cloud API due to a lack of authentication for a critical function in the affected devices. Availability is not affected.

Vulnerability class: Broken Authentication

EPSS: 0.006 (43.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-23943?
CVE-2024-23943 is a critical-severity vulnerability in Mb Connect Line Mbconnect24, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2025-03-18.
How severe is CVE-2024-23943?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2024-23943 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.