Rockwell Automation Micro850/870 Dependency on Vulnerable Third-Party Component (CVE-2025-13823)

high Tenable OT Security Plugin ID 505885

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A security issue was found in the IPv6 stack in the Micro850 and Micro870 controllers. This issue occurs when the controllers receive multiple malformed packets, causing the controller to enter a recoverable fault (fault code 0xFE60). To recover the controller, the fault must be cleared.

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Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

Rockwell Automation recommends users of Micro850/870 (2080-L50E/2080-L70E) update to V23.012 or later.

For users unable to upgrade to a corrected version, Rockwell Automation advises disabling IPv6 functionality if it is not required.

Plugin Details

Severity: High

ID: 505885

File Name: tenable_ot_rockwell_CVE-2025-13823.nasl

Version: 1.2

Type: Remote

Family: Tenable.ot

Published: 7/29/2026

Updated: 7/30/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.59

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:rockwellautomation:micro850_firmware, cpe:/o:rockwellautomation:micro870_firmware

Required KB Items: Tenable.ot/Rockwell

Exploit Ease: No known exploits are available

Patch Publication Date: 12/9/2025

Vulnerability Publication Date: 12/9/2025

Reference Information

CVE: CVE-2025-13823

CWE: 1395

ICSA: 25-352-07

Detections

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