---
id: CVE-2025-13823
title: >-
  A security issue was found in the IPv6 stack in the Micro850 and Micro870
  controllers when the controllers received multiple malformed packets during
  fuzzing
summary: >-
  A security issue was found in the IPv6 stack in the Micro850 and Micro870
  controllers when the controllers received multiple malformed packets during
  fuzzing. The controllers will go into recoverable fault with fault code
  0xFE60. To reco…
severity: none
published: '2025-12-15'
updated: '2026-09-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-13823'
references:
  - url: >-
      https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1766.html
    label: PSIRT@rockwellautomation.com
tags:
  - nvd
epss: 0.00199
epssPercentile: 0.08697
ingestedAt: '2026-09-03T03:55:24.115Z'
---

## Overview

A security issue was found in the IPv6 stack in the Micro850 and Micro870 controllers when the controllers received multiple malformed packets during fuzzing. The controllers will go into recoverable fault with fault code 0xFE60. To recover the controller, clear the fault.

## Remediation

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