CVE-2020-35558

Name: CVE-2020-35558
Creator: NVD / NIST
Published: 2021-02-16T16:15:13.113+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.48%

Last modified Jun 17, 2026

CVE-2020-35558 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual through 2.11.2. There is an SSRF in the in the MySQL access check, allowing an attacker to scan for open ports and gain some information about possible credentials.. EPSS estimates a 1.48% chance of exploitation in the next 30 days.

Description

An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual through 2.11.2. There is an SSRF in the in the MySQL access check, allowing an attacker to scan for open ports and gain some information about possible credentials.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.48%

70.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

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-2021-003Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2022-039Third Party Advisory
https://mbconnectline.com/security-advice/Vendor Advisory
https://cert.vde.com/en/advisories/VDE-2021-003Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2022-039Third Party Advisory
https://mbconnectline.com/security-advice/Vendor Advisory

Timeline

Published: Feb 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-35558?

How severe is CVE-2020-35558?

CVE-2020-35558 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.48% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35558?

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-2020-35558?

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

Scan your code now

Source: NVD / NIST