CVE-2026-0647CWE-306

Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities

High · published June 16, 2026

CVSS v4.0
8.8
EPSS
0%
Percentile
36.7
In the wild
Unconfirmed
What it is

An improper authentication security issue exists within the 1794-AENTR adapter's embedded web server. The vulnerability allows an unauthenticated attacker to change the device's web interface password by sending a crafted HTTP GET request to a specific endpoint, without any prior authentication being required. If exploited, this could lead to unauthorized access, account takeover, and loss of the device’s embedded web server’s availability.

The record
Technical detail
CVSS v4.0
8.8 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00435 · 36.7th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-06-16T14:20Z
EPSS history
Timeline
  • 16 JUN 14:20Z
    Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities
    cvelistv5