CVE-2026-9307
mediumpriority · track · 0EPSS 0.003 · 22 %ileDEEUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- MitigationCompactLogix 5370 L1cisa_csaf_ot
Rockwell Automation recommends users update to V38.011 https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&mode=3&refSoft=1&versions=55023,55024,55025,55026,55027,55061
https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&mode=3&refSoft=1&versions=55023,55024,55025,55026,55027,55061 - MitigationCompactLogix 5370 L2cisa_csaf_ot
Rockwell Automation recommends users update to V38.011 https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&mode=3&refSoft=1&versions=55023,55024,55025,55026,55027,55061
https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&mode=3&refSoft=1&versions=55023,55024,55025,55026,55027,55061 - MitigationCompactLogix 5370 L3cisa_csaf_ot
Rockwell Automation recommends users update to V38.011 https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&mode=3&refSoft=1&versions=55023,55024,55025,55026,55027,55061
https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&mode=3&refSoft=1&versions=55023,55024,55025,55026,55027,55061
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.7–6.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (17)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1967Rockwell Automation CompactLogix 5370 und ControlLogix 5570 Controllers: Mehrere SchwachstellenDeutsch2026-06-16csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Rockwell Automation CompactLogix 5370 und ControlLogix 5570 Controllers ausnutzen, um einen Denial of Service Angriff durchzuführen und vertrauliche Informationen offenzulegen.
- ICSA-26-167-04Rockwell Automation CompactLogix2026-06-16icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (3)
External citations — patches, advisories, analysis.
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1776.htmlcnnvd
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1776.htmlenisa_euvd
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1776.htmlnvd
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