CVE-2022-22520

Name: CVE-2022-22520
Creator: NVD / NIST
Published: 2022-09-14T14:15:12.427+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2022-22520 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A remote, unauthenticated attacker can enumerate valid users by sending specific requests to the webservice of MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

A remote, unauthenticated attacker can enumerate valid users by sending specific requests to the webservice of MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-204

Affected Software

Vendor	Product	Versions
Mbconnectline	Mbconnect24	<= 2.11.2
Mbconnectline	Mymbconnect24	<= 2.11.2
Helmholz	Myrex24	<= 2.11.2
Helmholz	Myrex24.Virtual	<= 2.11.2

References

https://cert.vde.com/en/advisories/VDE-2022-011Third Party Advisory, VDB Entry
https://cert.vde.com/en/advisories/VDE-2022-039Not Applicable
https://cert.vde.com/en/advisories/VDE-2022-011Third Party Advisory, VDB Entry
https://cert.vde.com/en/advisories/VDE-2022-039Not Applicable

Timeline

Published: Sep 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-22520?

How severe is CVE-2022-22520?

CVE-2022-22520 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2022-22520?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-22520?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST