Authentication Bypass to the MQTT configuration Web Interface
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-321.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-6074
- 2026-10-03 Alias added: GHSA-2f3f-xhh3-hqgg
References
More ABB vulnerabilities
- TI-2019-03985 ABB MicroSCADA Pro SYS600 Missing Authentication for Critical Function CVSS 3.1CRITICAL 9.8
- TI-2019-05127 The ABB IDAL HTTP server is vulnerable to a buffer overflow when a long Host header is… CVSS 3.1HIGH 8.8
- TI-2024-05845 Remote code execution in ABB ASPECT-Enterprise CVSS 4.0CRITICAL 9.4
- TI-2024-34459 Service control in ABB ASPECT-Enterprise CVSS 4.0HIGH 8.8
- TI-2024-05758 unauthorized file access CVSS 4.0CRITICAL 9.4
- TI-2022-00806 ABB Flow Computer and Remote Controllers Path Traversal Vulnerability in Totalflow TCP protocol can lead to root access CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-6074 · CVE Program
- CVE-2025-6074 · NVD
- FIRST EPSS
- GHSA-2f3f-xhh3-hqgg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences