AutomationDirect MB-Gateway Missing Authentication for Critical Function
Priority MEDIUM 51CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
The embedded web server lacks authentication and access controls, allowing unrestricted remote access. This could lead to configuration changes, operational disruption, or arbitrary code execution depending on the environment and exposed functionality.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01245 69th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AutomationDirect | MB-Gateway | All | — | No fix listed | CNA |
- MB-Gateway VendorAutomationDirect Affected All Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-36535
- 2026-10-03 Alias added: GHSA-8jmx-gwp7-3j43
References
More AutomationDirect vulnerabilities
- TI-2024-14467 A leftover debug code vulnerability exists in the Telnet Diagnostic Interface… CVSS 3.1CRITICAL 9.8
- TI-2024-14780 Improper access control in AutomationDirect P3-550E CVSS 3.1CRITICAL 9.1
- TI-2024-16461 Stack-based buffer overflow in AutomationDirect P3-550E CVSS 3.1CRITICAL 9.8
- TI-2024-16460 Stack-based buffer overflow in AutomationDirect P3-550E CVSS 3.1CRITICAL 9.8
- TI-2021-12594 Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel CVSS 3.1CRITICAL 9.8
- TI-2021-12592 Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-36535 · CVE Program
- CVE-2025-36535 · NVD
- FIRST EPSS
- GHSA-8jmx-gwp7-3j43 · 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