---
id: CVE-2025-11694
title: "A security issue exists within\_1769 CompactLogix controllers\_due to the\_missing validation of sequence numbers and source IP addresses in the CIP protocol"
summary: "A security issue exists within\_1769 CompactLogix controllers\_due to the\_missing validation of sequence numbers and source IP addresses in the CIP protocol. This allows attacker to abuse the exposed Connection ID’s visible on the web inte…"
severity: none
cwe:
  - CWE-354
published: '2026-06-16'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T21:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-11694'
references:
  - url: >-
      https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1776.html
    label: PSIRT@rockwellautomation.com
tags:
  - nvd
epss: 0.0017
epssPercentile: 0.0574
ingestedAt: '2026-09-30T21:25:07.750Z'
---

## Overview

A security issue exists within 1769 CompactLogix controllers due to the missing validation of sequence numbers and source IP addresses in the CIP protocol. This allows attacker to abuse the exposed Connection ID’s visible on the web interface to perform denial-of-service attacks, resulting in a minor fault.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.