Medium severity · published Jun 6, 2023
CVE-2023-1779
Helmholz and MB Connect Line: Account takeover via password reset in multiple products
4.3
CVSS
0.5%
EPSS
No
On KEV
Description
Exposure of Sensitive Information to an unauthorized actor vulnerability in MB Connect Lines mbCONNECT24, mymbCONNECT24 and Helmholz' myREX24 and myREX24.virtual in versions <=2.13.3 allow an authorized remote attacker with low privileges to view a limited amount of another accounts contact information.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MB
mbCONNECT24 · MB Connect Line
1.0.0 through 2.13.3 · source: vendor, NVD
MY
myREX24 · Helmholz
through 2.13.3 · source: vendor
MY
myREX24.virtual · Helmholz
through 2.13.3 · source: vendor
MY
mymbCONNECT24 · MB Connect Line
1.0.0 through 2.13.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-1779
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-1779
Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2023-008/
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CVE-2025-3091
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CVE-2020-35558
An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual through 2.11.2