Information disclosure in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400
Priority MEDIUM 50CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
An Information Exposure issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. User credentials are sent to the web server using the HTTP GET method, which may result in the credentials being logged. This could make user credentials available for unauthorized retrieval.
Why it matters now
EPSS 0.04657 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 Automation Allen-Bradley MicroLogix 1100 and 1400 | Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400 | — | No fix listed | CNA |
- Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400 Vendor— Affected Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400 Fixed in — No fix listed CNA
CPE configurations NVD · 22
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rockwellautomation:1763-l16awa_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1763-l16awa_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1763-l16bbb_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1763-l16bwa_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1763-l16bwa_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1763-l16dwd_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1763-l16dwd_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:ab_micrologix_controller:1100:*:*:*:*:*:*:* | 1100 | Running on | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32awa_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
- cpe:2.3:a:rockwellautomation:1763-l16awa_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1763-l16awa_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1763-l16bbb_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1763-l16bwa_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1763-l16bwa_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1763-l16dwd_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1763-l16dwd_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:ab_micrologix_controller:1100:*:*:*:*:*:*:* Versions 1100 Running on ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32awa_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
Show 12 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rockwellautomation:1766-l32awa_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32awaa_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32awaa_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32bwa_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32bwa_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32bxb_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32bxb_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32bxba_series_a:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:a:rockwellautomation:1766-l32bxba_series_b:*:*:*:*:*:*:*:* | up to 16.000 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:ab_micrologix_controller:1400:*:*:*:*:*:*:* | 1400 | Running on | Rockwell |
- cpe:2.3:a:rockwellautomation:1766-l32awa_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32awaa_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32awaa_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32bwa_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32bwa_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32bxb_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32bxb_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32bxba_series_a:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:a:rockwellautomation:1766-l32bxba_series_b:*:*:*:*:*:*:*:* Versions up to 16.000 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:ab_micrologix_controller:1400:*:*:*:*:*:*:* Versions 1400 Running on ·Rockwell
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7899
- 2026-10-03 Alias added: GHSA-mjq6-cm42-47hc
References
More Rockwell 1763-l16awa Series A vulnerabilities
- TI-2017-05509 Missing brute-force protection in Rockwell Automation Allen-Bradley MicroLogix 1100 and… CVSS 3.1CRITICAL 9.8
- TI-2017-05513 A Weak Password Requirements issue was discovered in Rockwell Automation Allen-Bradley… CVSS 3.1CRITICAL 9.8
- TI-2016-00782 Stack-based buffer overflow on Rockwell Automation Allen-Bradley MicroLogix 1100 devices… CVSS 3.0CRITICAL 9.8
- TI-2017-05511 A Predictable Value Range from Previous Values issue was discovered in Rockwell… CVSS 3.0HIGH 8.6
- TI-2017-05512 A "Reusing a Nonce, Key Pair in Encryption" issue was discovered in Rockwell Automation… CVSS 3.0CRITICAL 9.8
- TI-2016-07614 An issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 controller… CVSS 3.0HIGH 7.3
Sources
- CVE-2017-7899 · CVE Program
- CVE-2017-7899 · NVD
- FIRST EPSS
- GHSA-mjq6-cm42-47hc · 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