CyberSecBulletin
CVE-2025-7353NVD status: Deferred

1756-EN2T/D: Initialization of a Resource with an Insecure Default

Published Updated By the CyberSecBulletin desk

CVE-2025-7353 is a critical-severity initialization of a resource with an insecure default vulnerability in 1756-EN2T/D from Rockwell Automation, with a CVSS 4.0 base score of 9.3 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected 1756-EN2T/D versions: Version 11.004 or below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.89% chance of exploitation within 30 days, higher than 60% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Check which version of 1756-EN2T/D you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on rockwellautomation.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Rockwell Automation1756-EN2T/DVersion 11.004 or belowNot stated
Rockwell Automation1756-EN2F/CVersion 11.004 or belowNot stated
Rockwell Automation1756-EN2TR/CVersion 11.004 or belowNot stated
Rockwell Automation1756-EN3TR/BVersion 11.004 or belowNot stated
Rockwell Automation1756-EN2TP/AVersion 11.004 or belowNot stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Attack requirements
NoneThe attack does not depend on a particular deployment or configuration.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Confidentiality (vulnerable system)
HighSerious loss of confidentiality on the vulnerable system.
Integrity (vulnerable system)
HighSerious loss of integrity on the vulnerable system.
Availability (vulnerable system)
HighSerious loss of availability on the vulnerable system.
Confidentiality (other systems)
NoneNo loss of confidentiality on systems beyond the vulnerable one.
Integrity (other systems)
NoneNo loss of integrity on systems beyond the vulnerable one.
Availability (other systems)
NoneNo loss of availability on systems beyond the vulnerable one.

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. Scored by CNA (rockwellautomation.com).

Official description

A security issue exists due to the web-based debugger agent enabled on Rockwell Automation ControlLogix® Ethernet Modules. If a specific IP address is used to connect to the WDB agent, it can allow remote attackers to perform memory dumps, modify memory, and control execution flow.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Initialization of a Resource with an Insecure Default

The product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure.

More Initialization of a Resource with an Insecure Default vulnerabilities (CWE-1188)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Initialization of a Resource with an Insecure Default vulnerabilities

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