CVE-2025-9124Network attack vector

Nonrecoverable controller fault via crafted CIP message

Published Oct 14, 2025 · Updated Oct 14, 2025

Denial of service in Rockwell Automation Compact GuardLogix 5370 30.012 and earlier allows remote attackers to halt controller operation. CIP unconnected explicit-message handling leaves a fault from a crafted message uncaught, placing the controller in a major nonrecoverable fault state. No authentication or user interaction is required, and the resulting fault prevents the controller from recovering or functioning normally.

CVSS severity8.7
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Rockwell Automation Compact GuardLogix 5370 30.012 and earlier allows remote attackers to halt controller operation. CIP unconnected explicit-message handling leaves a fault from a crafted message uncaught, placing the controller in a major nonrecoverable fault state. No authentication or user interaction is required, and the resulting fault prevents the controller from recovering or functioning normally.

The record

CVE
CVE-2025-9124
Published
Oct 14, 2025
Updated
Oct 14, 2025
Vendor
Rockwell Automation
Product
Compact GuardLogix 5370
Classifications
CWE-248, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Version 30.012 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rockwell Automation · Compact GuardLogix 5370version=Version 30.012 and prior

Published CVSS scores

7.5Rockwell AutomationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7Rockwell AutomationCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-248Uncaught Exception
T0814Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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