CVE-2025-13823

Micro820®, Micro850®, Micro870® – Specialized Fuzzing Vulnerabilities

Published Dec 15, 2025 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

V23.012 https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Rockwellautomation
Rockwellautomation micro820
Rockwellautomation micro850
Rockwellautomation micro870
Vendors & Products Rockwellautomation
Rockwellautomation micro820
Rockwellautomation micro850
Rockwellautomation micro870
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Micro820®, Micro850®, Micro870® – Specialized Fuzzing Vulnerabilities
Weaknesses CWE-1395
References
Metrics cvssV4_0

{'score': 7.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Rockwell
Published
Updated
Dec 15, 2025, 4:37 PM
Reserved
Dec 1, 2025, 2:29 PM
Status
Deferred
Published
Dec 15, 2025, 4:15 PM
Modified
Oct 7, 2026, 7:10 PM