Security readout for executives and security teams
Plain-English summary
This flaw affects Allen Bradley MicroLogix 1400 Series B controllers at FRN 21.2 and earlier. An unauthenticated network packet can allow reading or changing controller data, settings, or ladder logic. For a production PLC, that means confidentiality, process integrity, and availability can all be at risk.
Executive priority
Prioritize immediately if affected PLCs support production, utilities, or safety-adjacent operations. The business risk is not just data exposure; unauthorized logic or settings changes could disrupt operations or create unsafe process behavior. Focus first on inventory, isolation, and vendor-confirmed remediation.
Technical view
The CVE describes an access control issue in data, program, and function file permissions. In REMOTE, PROG, or RUN keyswitch states, crafted unauthenticated packets may trigger read or write operations against sensitive PLC resources. The assigned CVSS v3.0 score is 10.0 with network access, low complexity, no privileges, and high impact.
Likely exposure
Exposure is likely limited to environments running Allen Bradley MicroLogix 1400 Series B controllers with FRN 21.2, 21.0, 15, or earlier affected firmware. Risk increases sharply when controller programming or management interfaces are reachable from untrusted networks, shared enterprise networks, or vendor remote-access paths.
Exploitation context
The provided sources support unauthenticated remote reachability and serious read/write impact. They do not show CISA KEV listing or active exploitation evidence. The bundle also does not name a specific patch or firmware fix, so remediation should be confirmed against current vendor guidance.
Researcher notes
Evidence is strongest for affected product, unauthenticated network trigger, and high CIA impact. Evidence is incomplete for public exploit availability, observed exploitation, and exact vendor patch status in this bundle. Avoid assuming affected models beyond MicroLogix 1400 Series B FRN 21.2 and earlier.
Mitigation direction
- Inventory MicroLogix 1400 Series B controllers and firmware revisions.
- Restrict network access to PLC programming and management services.
- Segment affected controllers from enterprise and internet-reachable networks.
- Check Rockwell Automation guidance for supported firmware or configuration remediation.
- Limit remote programming exposure where operationally feasible.
- Monitor for unexpected controller data, settings, or ladder logic changes.
Validation and detection
- Confirm whether any MicroLogix 1400 Series B units run FRN 21.2 or earlier.
- Review network paths that can reach affected PLCs.
- Verify keyswitch operating states for exposed controllers.
- Check backups against deployed ladder logic and configuration.
- Review engineering workstation and controller logs for unauthorized changes.
- Document compensating controls where vendor remediation is unavailable.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2017-14470 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
10CriticalVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0443CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.