CVE-2026-9307

MEDIUM

Rockwell CompactLogix 5370 v36 - CIP Connection ID Disclosure

Title source: manual

Description

A sensitive information disclosure security issue exists within the affected CompactLogix controllers. The controller's web server exposes CIP Connection IDs on the diagnostics webpage, which are accessible to any unauthenticated user on the network. This information can be leveraged by an attacker to construct malicious packets, leading to Denial-of-Service.

References (1)

Core 1

Core References

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1776.html

Scores

CVSS v4 6.3

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-497

Status published

Products (1)

Rockwell Automation/CompactLogix 5370 V36

Published Jun 16, 2026

Tracked Since Jun 16, 2026