OMRON Machine Automation Controller NJ-series least privilege violation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in OMRON Machine Automation Controller NJ-series, Machine Automation Controller NX-series and Sysmac Studio Software. It has been classified as critical. Impacted is an unknown function. This manipulation causes least privilege violation. This vulnerability is handled as CVE-2025-1384. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in OMRON Machine Automation Controller NJ-series, Machine Automation Controller NX-series and Sysmac Studio Software (unknown version). It has been declared as critical. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a least privilege violation vulnerability. The CWE definition for the vulnerability is CWE-272. The elevated privilege level required to perform operations such as chroot() should be dropped immediately after the operation is performed. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at fa.omron.co.jp. This vulnerability is known as CVE-2025-1384 since 02/17/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/14/2025). MITRE ATT&CK project uses the attack technique T1068 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-21287). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.0
CNA Vector (OMRON): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Least privilege violation
CWE: CWE-272 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/17/2025 CVE reserved
07/14/2025 +146 days Advisory disclosed
07/14/2025 +0 days VulDB entry created
07/14/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: OMSR-2025-004
Status: Confirmed

CVE: CVE-2025-1384 (🔒)
GCVE (CVE): GCVE-0-2025-1384
GCVE (VulDB): GCVE-100-316321
EUVD: 🔒

Entryinfo

Created: 07/14/2025 08:10
Updated: 07/14/2025 13:30
Changes: 07/14/2025 08:10 (61), 07/14/2025 10:15 (1), 07/14/2025 13:30 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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