Medium severity · published Feb 16, 2021
CVE-2020-35561
An issue was discovered MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2
5.3
CVSS
1.2%
EPSS
No
On KEV
Description
An issue was discovered MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2. There is an SSRF in the HA module allowing an unauthenticated attacker to scan for open ports.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MB
Mbconnect24 · Mbconnectline
through 2.11.2 · source: NVD
MY
Mymbconnect24 · Mbconnectline
through 2.11.2 · source: NVD
MY
Myrex24 · Helmholz
through 2.11.2 · source: NVD
MY
Myrex24.virtual · Helmholz
through 2.11.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35561
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-35561
Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2021-003
Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2022-039
Vendor Advisory
https://mbconnectline.com/security-advice/
More from Myrex24
8.2
CVE-2025-3090
MB connect line: Missing Authentication in mbCONNECT24/mymbCONNECT24
7.5
CVE-2025-3092
MB connect line: Observable response discrepancy in mbCONNECT24/mymbCONNECT24
7.5
CVE-2025-3091
MB connect line: Authorization bypass in mbCONNECT24/mymbCONNECT24
7.5
CVE-2020-35558
An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual through 2.11.2
6.5
CVE-2020-12527
An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2