Improper input validation in Rockwell Automation MicroLogix 1100 Controllers
Priority MEDIUM 53CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.
Why it matters now
EPSS 0.22182 97th 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 MicroLogix 1100 Controllers | Rockwell Automation MicroLogix 1100 Controllers | — | No fix listed | CNA |
- Rockwell Automation MicroLogix 1100 Controllers Vendor— Affected Rockwell Automation MicroLogix 1100 Controllers Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:rockwellautomation:1763-l16bwa_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:1763-l16bwa:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:1763-l16awa_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:1763-l16awa:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:1763-l16bbb_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:1763-l16bbb:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:1763-l16dwd_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:1763-l16dwd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
- cpe:2.3:o:rockwellautomation:1763-l16bwa_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:1763-l16bwa:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:1763-l16awa_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:1763-l16awa:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:1763-l16bbb_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:1763-l16bbb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:1763-l16dwd_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:1763-l16dwd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7924
- 2026-10-03 Alias added: GHSA-ch2w-m37v-83fq
References
Sources
- CVE-2017-7924 · CVE Program
- CVE-2017-7924 · NVD
- FIRST EPSS
- GHSA-ch2w-m37v-83fq · 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