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CVE-2025-1384Least Privilege Violation Vulnerability in the communications functions of NJ/NX-series Machine Automation Controllers

Description

Least Privilege Violation (CWE-272) Vulnerability exists in the communication function between the NJ/NX-series Machine Automation Controllers and the Sysmac Studio Software. An attacker may use this vulnerability to perform unauthorized access and to execute unauthorized code remotely to the controller products.

Timeline

  1. ID reserved

    By OMRON

  2. · 5 months later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2025-1384, by who scored it
Scored byCVSSScoreVector
OMRONCNA (assigner)3.1High7.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
NVDNVD · Deferred3.1High7.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
EPSS (exploitation in 30 days)
0.26% · top 82% of all CVEs (14 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.

Affected products

What to do

Solution: The countermeasure against the vulnerability can be implemented by updating each product to the countermeasure version and setting the secure communication version 2. For information on how to obtain and update the firmware for the countermeasure version of the product, please contact our sales office or distributors.

Workaround: OMRON recommends that customers take the following mitigation measures to minimize the risk of exploitation of this vulnerability. 1. Secure Communication Function The secure communication function can prevent data from being eavesdropped or tampered with by a third party. Secure communication is available in the following CPU Units of the stated versions. - NJ series, NX102, NX1P2 CPU Unit: Version 1.49 or higher - NX701 CPU Unit: Version 1.29 or higher - NX502 CPU Unit: Version 1.60 or higher 2. Anti-virus protection Protect any PC with access to the control system against malware and ensure installation and maintenance of up-to-date commercial grade anti-virus software protection. 3. Security measures to prevent unauthorized access - Minimize connection of control systems and equipment to open networks, so that untrusted devices will be unable to access them. - Implement firewalls (by shutting down unused communications ports, limiting communications hosts) and isolate them from the IT network. - Use a virtual private network (VPN) for remote access to control systems and equipment. - Use strong passwords and change them frequently. - Install physical controls so that only authorized personnel can access control systems and equipment. - Scan virus to ensure safety of any USB drives or similar devices before connecting them to systems and devices. - Enforce multifactor authentication to all devices with remote access to control systems and equipment whenever possible. 4. Data input and output protection Validation processing such as backup and range check to cope with unintentional modification of input/output data to control systems and devices. 5. Data recovery Periodical data backup and maintenance to prepare for data loss.

References

References2

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .