CVE-2025-6074: Authentication Bypass to the MQTT configuration Web Interface

Description

Use of Hard-coded Cryptographic Key vulnerability in ABB RMC-100, ABB RMC-100 LITE. When the REST interface is enabled by the user, and an attacker gains access to source code and control network, the attacker can bypass the REST interface authentication and gain access to MQTT configuration data. This issue affects RMC-100: from 2105457-043 through 2105457-045; RMC-100 LITE: from 2106229-015 through 2106229-016.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

Low

Integrity

Low

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.3% · higher than 22% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

RM

RMC-100 · ABB

2105457-043 through 2105457-045 · source: vendor

RL

RMC-100 LITE · ABB

2106229-015 through 2106229-016 · source: vendor