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CVE-2026-0647

HIGH
8.8
CVSS 4.0
Description
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.

Metadata

CVE ID
CVE-2026-0647
State
PUBLISHED
Assigner
Rockwell
Reserved
2026-01-06 16:09 UTC
Published
2026-06-16 14:20 UTC
Last updated
2026-06-16 15:23 UTC
Primary CWE
CWE-306
CWE-306: Missing Authentication for Critical Function
Vendor / Product
Rockwell Automation / FLEX I/O EtherNet/IP Adapters
Sources
cve.org  ·  NVD

Severity & Metrics

8.8 HIGH CVSS 4.0
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
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
Rockwell Automation FLEX I/O EtherNet/IP Adapters — 2.012
Weakness (CWE)
CWESourceDescription
CWE-306 cna CWE-306: Missing Authentication for Critical Function
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.8 HIGH 4.0 cna 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
References (1)
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