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CVE-2025-13823

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

HIGH
7.1
CVSS Score
Published: December 15, 2025 at 03:17 PM UTC
Updated: October 7, 2026 at 07:10 PM UTC
3 products affected across 1 vendorMicro850Micro870Micro820

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHRockwell
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-1395

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