Skip to content
Fencer Vulns
medium 6.3

CVE-2026-9307 json

Rockwell Automation CompactLogix 5370 Controllers – Multiple Vulnerabilities

published 2026-06-16 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-37118

cvss
6.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-167-04 updated cvss 5.3

Rockwell Automation CompactLogix

  • Rockwell Automation CompactLogix 5370 L1 <V38.011 Rockwell Automation CompactLogix 5370 L2 <V38.011 Rockwell Automation CompactLogix 5370 L3 <V38.011
    affected: mitigation “For more information, please visit Rockwell Automations SD1776 https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1776.html” compatibility.rockwellautomation.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 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
CNA 4.0 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

Affected products

  • Rockwell Automation CompactLogix 5370

Classification

Weakness
  • CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.