Rockwellautomation: >> 1756-En4trxt Firmware Security Vulnerabilities
A security issue exists in the protected mode of 1756-EN4TR and 1756-EN2TR communication modules, where a Concurrent Forward Close operation can trigger a Major Non-Recoverable (MNFR) fault. This condition may lead to unexpected system crashes and loss of device availability.
CVSS Score
6.5
EPSS Score
0.001
Published
2025-09-09
A security issue exists in the protected mode of EN4TR devices, where sending specifically crafted messages during a Forward Close operation can cause the device to crash.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-09-09
Where this vulnerability exists in the Rockwell Automation 1756-EN4* Ethernet/IP communication products, it could allow a malicious user to cause a denial of service by asserting the target system through maliciously crafted CIP messages.
CVSS Score
7.5
EPSS Score
0.005
Published
2023-07-12