CVE-2026-0647

The 1794-AENTR adapter (Rockwell Automation FLEX I/O dual‑port EtherNet/IP) has an improper authentication flaw in its embedded web server. An unauthenticated attacker can change the device web interface password by sending a crafted HTTP GET request to a specific endpoint, without prior authenti...

CVE-2026-0646

The affected product is Rockwell Automation 1794-AENTR adapters (EtherNet/IP). The issue is a denial-of-service caused by improper memory handling of CIP protocol requests in the 1794-AENTR adapter, which can cause the device to fault and drop connections to its linked I/O modules, requiring a ma...

Rockwell Automation FLEX I/O EtherNet/IP Adapters

ADVISORY SUMMARY Successful exploitation of these vulnerabilities could allow an attacker to gain unauthorized access, account takeover, and cause loss of availability. 2. RECOMMENDED PRACTICES CISA recommends users take defensive measures to minimize the risk of exploitation of these...

Rockwell Automation 1794-AENT Flex I/O Series B Buffer Copy Without Checking Size of Input (CVE-2020-6083)

An exploitable denial of service vulnerability exists in the ENIP Request Path Port Segment functionality of Allen- Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious...

Rockwell Automation 1794-AENT Flex I/O Series B Buffer Copy Without Checking Size of Input (CVE-2020-6085)

An exploitable denial of service vulnerability exists in the ENIP Request Path Logical Segment functionality of Allen- Bradley Flex IO 1794-AENT/B 4.003. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a...

Rockwell Automation 1794-AENT Flex I/O Series B Buffer Copy Without Checking Size of Input (CVE-2020-6086)

An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen- Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious...

Rockwell Automation 1794-AENT Flex I/O Series B Buffer Copy Without Checking Size of Input (CVE-2020-6087)

An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen- Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious...

Vulnerability Spotlight: Allen-Bradley Flex I/O vulnerable to denial of service

Jared Rittle of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. The Rockwell Automation Allen-Bradley Flex I/O input/output device is vulnerable to a denial-of-service vulnerability. FLEX I/O provides a wide range of input/output operations while keeping a smaller form factor. Use...

Rockwell Automation 1794-AENT Flex I/O Series B

1. EXECUTIVE SUMMARY CVSS v3 7.5 ATTENTION: Exploitable remotely/low skill level to exploit Vendor: Rockwell Automation Equipment: 1794-AENT Flex I/O Series B Vulnerabilities: Classic Buffer Overflow 2. RISK EVALUATION Successful exploitation of these vulnerabilities could crash the device being...

Vulnerability Spotlight: Denial-of-service vulnerabilities in Allen-Bradley Flex I/O

Jared Rittle of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. The Allen-Bradley Flex input/output system contains multiple denial-of-service vulnerabilities in its ENIP request path data segment. These bugs exist specifically in the 1794-AENT FLEX I/O modular platform. It...

Rockwell Automation/Allen-Bradley 1794 FLEX I/O Communication Module Detection

Binary data 193.prm...

Rockwell Automation 1794-AENT FLEX I/O Ethernet Adapter Communication Adapter

Binary data 752921.prm...

Rockwell Automation 1794-ACN15 FLEX I/O ControlNet Adapter (Single Media) 1794-ACN15/A Communication Adapter

Binary data 752888.prm...

Rockwell Automation 1794-ADN DeviceNet Flex I/O Adapter 1794-ADN/A Communication Adapter

Binary data 752870.prm...

CVE-2012-6442

When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that instructs the product to reset, a DoS can occur. This situation could cause loss of availability and a disruption of communicatio...

CVE-2012-6439 Rockwell Automation ControlLogix PLC Improper Access Control

When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that changes the product’s configuration and network parameters, a DoS condition can occur. This situation could cause loss of...