CVE-2019-18269

Published Dec 16, 2019 CVSS 3.1 · 8.6 High EPSS 1.0% KEV · Not listed
Description
Omron’s CS and CJ series PLCs have an unrestricted externally accessible lock vulnerability.

Remediation

Vendor Workaround

Omron recommends the following mitigation measures: * Filter FINS port: Protect access to Omron’s PLC with a firewall and blocking unnecessary remote access to FINS port (default: 9600). * Filter IP addresses: Protect access to Omron’s PLC with a firewall and filtering devices connected to the PLC by IP address. For more information provided by Omron on these vulnerabilities refer to Vulnerabilities in Omron CS and CJ series CPU PLCs https://gcc01.safelinks.protection.outlook.com/ .

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2019-8061 Omron’s CS and CJ series PLCs have an unrestricted externally accessible lock vulnerability.
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H'}

Type Values Removed Values Added
Description Omron’s CS and CJ series PLCs have an unrestricted externally accessible lock vulnerability. Omron’s CS and CJ series PLCs have an unrestricted externally accessible lock vulnerability.
Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Jun 2, 2026, 7:50 PM
Reserved
Oct 22, 2019, 12:00 AM
Status
Modified
Published
Dec 16, 2019, 8:15 PM
Modified
Jun 17, 2026, 2:24 AM