CVE-2025-13824

HIGH

Rockwell Automation Micro820, Micro850, Micro870 - Denial of Service via Malformed CIP Packet Handling

Title source: llm

Description

A security issue exists due to improper handling of malformed CIP packets during fuzzing. The controller enters a hard fault with solid red Fault LED and becomes unresponsive. Upon power cycle, the controller will enter recoverable fault where the MS LED and Fault LED become flashing red and reports fault code 0xF019. To recover, clear the fault.

References (1)

Core 1

Core References

Various Sources

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1766.html

Scores

CVSS v4 8.7

EPSS 0.0031

EPSS Percentile 22.9%

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-763

Status published

Products (3)

Rockwell Automation/Micro820®, Micro850®, Micro870® V12.013 and lower

Rockwell Automation/Micro820®, Micro850®, Micro870® V14.011 and lower

Rockwell Automation/Micro820®, Micro850®, Micro870® V23.011 and below

Published Dec 15, 2025

Tracked Since Feb 18, 2026