Rockwell Automation Micrologix 1400 Improper Input Validation
Priority LOW 38CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · CNA. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
The DNP3 feature on Rockwell Automation Allen-Bradley MicroLogix 1400 1766-Lxxxxx A FRN controllers 7 and earlier and 1400 1766-Lxxxxx B FRN controllers before 15.001 allows remote attackers to cause a denial of service (process disruption) via malformed packets over (1) an Ethernet network or (2) a serial line.
Why it matters now
EPSS 0.04171 90th percentileScored 2026-11-07
Fix Fixed Allen-Bradley MicroLogix 1400 (Rockwell Automation): Series B FRN 15.001 or higher
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Rockwell | Allen-Bradley MicroLogix 1400 | up to 1766-Lxxxxx Series A FRN 7; up to 1766-Lxxxxx Series B FRN 15.000 | Series B FRN 15.001 or higher | Patch available | CNA |
- Allen-Bradley MicroLogix 1400 VendorRockwell Affected up to 1766-Lxxxxx Series A FRN 7; up to 1766-Lxxxxx Series B FRN 15.000 Fixed in Series B FRN 15.001 or higher Patch available CNA
Remediation
- Fix · CNA Allen-Bradley MicroLogix 1400 (Rockwell Automation) Fixed in Series B FRN 15.001 or higher
Timeline
- 2026-10-02 Threatist record created from CVE-2014-5410
- 2026-10-03 Alias added: GHSA-h68h-cg6m-r2p3
References
More Rockwell Ab Micrologix Controller vulnerabilities
- TI-2012-03998 Rockwell Automation Allen-Bradley MicroLogix controller 1100, 1200, 1400, and 1500; SLC… CVSS 2.0HIGH 7.1
Sources
- CVE-2014-5410 · CVE Program
- CVE-2014-5410 · NVD
- FIRST EPSS
- GHSA-h68h-cg6m-r2p3 · GitHub Advisory Database · CC BY 4.0
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