Is CVE-2026-0647 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-0647 being exploited in the wild.

How severe is CVE-2026-0647?

Informational severity, with a CVSS score of 9.4, published 16 June 2026.

Which products and versions are affected?

Rockwell Automation 1794-AENTRXT FLEX I/O EtherNet/IP Adapter 2.012.

Is there a fix for CVE-2026-0647?

A patch was published on 2026-06-16: Firmware version 2.013 released to address the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-0647 attacked?

It is attacked over the network, in an operating system.

Am I affected by CVE-2026-0647?

Check whether you run Rockwell Automation 1794-AENTR FLEX I/O EtherNet/IP Adapter or Rockwell Automation 1794-AENTRXT FLEX I/O EtherNet/IP Adapter at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-0647: Rockwell Automation 1794-AENTR improper authentication in web server

CVE-2026-0647 · Severity: info · CVSS 9.4 · Published 2026-06-16

A security vulnerability exists in Rockwell Automation FLEX I/O adapters, which are used to connect industrial equipment to automation networks. An attacker can remotely change the device's web management password without needing any existing credentials. This could allow an unauthorized user to take full control of the device's web interface, potentially disrupting industrial operations or modifying device configurations.

Vendors: Rockwell Automation.

Quick answers

Is CVE-2026-0647 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-0647 being exploited in the wild.
How severe is CVE-2026-0647?: Informational severity, with a CVSS score of 9.4, published 16 June 2026.
Which products and versions are affected?: Rockwell Automation 1794-AENTRXT FLEX I/O EtherNet/IP Adapter 2.012.
Is there a fix for CVE-2026-0647?: A patch was published on 2026-06-16: Firmware version 2.013 released to address the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-0647 attacked?: It is attacked over the network, in an operating system.
Am I affected by CVE-2026-0647?: Check whether you run Rockwell Automation 1794-AENTR FLEX I/O EtherNet/IP Adapter or Rockwell Automation 1794-AENTRXT FLEX I/O EtherNet/IP Adapter at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper authentication vulnerability (CWE-306) exists within the embedded web server of Rockwell Automation 1794-AENTR and 1794-AENTRXT FLEX I/O adapters. The flaw allows a remote, unauthenticated attacker to reset or change the web interface password by sending a specifically crafted HTTP GET request to a vulnerable endpoint. Successful exploitation results in complete account takeover of the web management interface and potential loss of availability of the web server. The issue is fixed in firmware version 2.013.

Affected products

Rockwell Automation 1794-AENTR / 1794-AENTRXT FLEX I/O EtherNet/IP Adapters 2.012

Timeline

2026-05-20: other: Initial internal revision date
2026-06-16: advisory: Public advisory released by Rockwell Automation
2026-06-16: patched: Firmware version 2.013 released to address the issue

References

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1775.html

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