Rockwell Automation ControlLogix and GaurdLogix Vulnerable to Major Nonrecoverable Fault Due to Invalid Header Value
Priority MEDIUM 44CWE-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 3.1 · CNA. Fix status from CNA.
Summary
A specific malformed fragmented packet type (fragmented packets may be generated automatically by devices that send large amounts of data) can cause a major nonrecoverable fault (MNRF) Rockwell Automation's ControlLogix 5580, Guard Logix 5580, CompactLogix 5380, and 1756-EN4TR. If exploited, the affected product will become unavailable and require a manual restart to recover it. Additionally, an MNRF could result in a loss of view and/or control of connected devices.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00637 50th 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
- Partial
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 |
|---|---|---|---|---|---|
| Rockwell | ControlLogix 5580 | v35.011 | — | No fix listed | CNA |
| Rockwell | GuardLogix 5580 | v35.011 | — | No fix listed | CNA |
| Rockwell | CompactLogix 5380 | v5.001 | — | No fix listed | CNA |
| Rockwell | 1756-EN4TR | v5.001 | — | No fix listed | CNA |
- ControlLogix 5580 VendorRockwell Affected v35.011 Fixed in — No fix listed CNA
- GuardLogix 5580 VendorRockwell Affected v35.011 Fixed in — No fix listed CNA
- CompactLogix 5380 VendorRockwell Affected v5.001 Fixed in — No fix listed CNA
- 1756-EN4TR VendorRockwell Affected v5.001 Fixed in — No fix listed CNA
CPE configurations NVD · 16
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:rockwellautomation:controllogix_5580_firmware:35.011:*:*:*:*:*:*:* | 35.011 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:controllogix_5580:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:guardlogix_5580_firmware:35.011:*:*:*:*:*:*:* | 35.011 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:guardlogix_5580:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:compactlogix_5380_firmware:35.011:*:*:*:*:*:*:* | 35.011 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:compactlogix_5380:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:compact_guardlogix_5380_firmware:35.011:*:*:*:*:*:*:* | 35.011 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:compact_guardlogix_5380:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:1756-en4tr_firmware:5.001:*:*:*:*:*:*:* | 5.001 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:1756-en4tr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
- cpe:2.3:o:rockwellautomation:controllogix_5580_firmware:35.011:*:*:*:*:*:*:* Versions 35.011 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:controllogix_5580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:guardlogix_5580_firmware:35.011:*:*:*:*:*:*:* Versions 35.011 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:guardlogix_5580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:compactlogix_5380_firmware:35.011:*:*:*:*:*:*:* Versions 35.011 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:compactlogix_5380:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:compact_guardlogix_5380_firmware:35.011:*:*:*:*:*:*:* Versions 35.011 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:compact_guardlogix_5380:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:1756-en4tr_firmware:5.001:*:*:*:*:*:*:* Versions 5.001 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:1756-en4tr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
Show 6 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:rockwellautomation:controllogix_5580_process_firmware:35.011:*:*:*:*:*:*:* | 35.011 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:controllogix_5580_process:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:compactlogix_5380_process_firmware:35.011:*:*:*:*:*:*:* | 35.011 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:compactlogix_5380_process:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
| cpe:2.3:o:rockwellautomation:compactlogix_5480_firmware:35.011:*:*:*:*:*:*:* | 35.011 | Vulnerable | Rockwell |
| cpe:2.3:h:rockwellautomation:compactlogix_5480:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rockwell |
- cpe:2.3:o:rockwellautomation:controllogix_5580_process_firmware:35.011:*:*:*:*:*:*:* Versions 35.011 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:controllogix_5580_process:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:compactlogix_5380_process_firmware:35.011:*:*:*:*:*:*:* Versions 35.011 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:compactlogix_5380_process:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
- cpe:2.3:o:rockwellautomation:compactlogix_5480_firmware:35.011:*:*:*:*:*:*:* Versions 35.011 Vulnerable ·Rockwell
- cpe:2.3:h:rockwellautomation:compactlogix_5480:-:*:*:*:*:*:*:* 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-2024-3493
- 2026-10-03 Alias added: GHSA-mjg4-p237-8j88
- 2026-10-25 EPSS moved to the 50th–90th percentile
More Rockwell 1756-en4tr Firmware vulnerabilities
- TI-2023-03356 Rockwell Automation Allen-Bradley ControlLogix Communication Modules vulnerable to Denial of Service CVSS 3.1HIGH 7.5
- TI-2024-08002 Logix Controllers Vulnerable to Denial-of-Service Vulnerability CVSS 4.0HIGH 8.7
- TI-2025-07328 Rockwell Automation 1756-ENT2R, EN4TR, EN4TRXT Vulnerability CVSS 4.0HIGH 7.1
- TI-2025-07327 Rockwell Automation 1756-ENT2R, EN4TR, EN4TRXT Vulnerability CVSS 4.0HIGH 7.1
Sources
- CVE-2024-3493 · CVE Program
- CVE-2024-3493 · NVD
- FIRST EPSS
- GHSA-mjg4-p237-8j88 · 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