The web interface of the 1734-AENTR communication module mishandles authentication for HTTP POST requests. A remote, unauthenticated attacker can send a crafted request that may allow for modification of the configuration settings.
A workaround or mitigation is available. Apply it until an official patch is released.
CVSS v4.0 Metrics
Exploitability
Attack VectorNetwork
ComplexityLow
RequirementsPresent
PrivilegesNone
User InteractionNone
Threat
Exploit MaturityUnreported
Vulnerable System
ConfidentialityNone
IntegrityLow
AvailabilityNone
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | nvd | patch: Unavailable→Mitigation | 1.7 → 1.7 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 1.7 |
Affected Software
| Vendor | Product | Version |
|---|
| Rockwell Automation | 1734-AENTR | > 4.001 to 4.005, < 5.017 |
| Rockwell Automation | 1734-AENTR | Series C 6.011 and 6.012 |
| rockwellautomation | 1734-aentr_point_i\/o_dual_port_network_adaptor_series_b_firmware | ≥ 4.001, ≤ 4.005 |
| rockwellautomation | 1734-aentr_point_i\/o_dual_port_network_adaptor_series_b_firmware | ≥ 5.011, ≤ 5.017 |
| rockwellautomation | 1734-aentr_point_i\/o_dual_port_network_adaptor_series_c_firmware | 6.011 |
| rockwellautomation | 1734-aentr_point_i\/o_dual_port_network_adaptor_series_c_firmware | 6.012 |
Published: 2022-02-24
