# CVE-2025-13823

## Summary

- **CVE ID:** CVE-2025-13823
- **Severity:** HIGH
- **CVSS Score:** 7.1 (CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-1395
- **Published:** Dec 15, 2025
- **Last Modified:** Mar 13, 2026

## Description

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.

## Affected Products

- Rockwell Automation — Micro820®, Micro850®,  Micro870® (V23.011)

## References

- [CNA](https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1766.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.19%
- **EPSS Percentile:** 9.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._