Summaryinfo

A vulnerability has been found in Yokogawa Electric CENTUM VP up to R5.04.20/R6.12.00/R7.01.00 and classified as problematic. Affected is an unknown function. This manipulation causes hard-coded password. This vulnerability appears as CVE-2025-7741. The attack requires local access. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Yokogawa Electric CENTUM VP up to R5.04.20/R6.12.00/R7.01.00. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a hard-coded password vulnerability. The CWE definition for the vulnerability is CWE-259. The product contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Hardcoded Password Vulnerability have been found in CENTUM. Affected products contain a hardcoded password for the user account (PROG) used for CENTUM Authentication Mode within the system. Under the following conditions, there is a risk that an attacker could log in as the PROG user. The default permission for the PROG users is S1 permission (equivalent to OFFUSER). Therefore, for properly permission-controlled targets of operation and monitoring, even if an attacker user in as the PROG user, the risk of critical operations or configuration changes being performed is considered low. (If the PROG user's permissions have been changed for any reason, there is a risk that operations or configuration changes may be performed under the modified permissions. The CVSS values below are for the default permissions.) Additionally, exploiting this vulnerability requires an attacker to already have access to the HIS screen controls. Therefore, an attacker can already operate and monitor at that point, regardless of this vulnerability. The conditions under which this vulnerability is exploited: If all of the following conditions are met, the affected products are vulnerable to this vulnerability. -An attacker obtains the hardcoded password using a certain method. -The HIS with the affected product installed is configured in CTM authentication mode. -An attacker must have direct access to the aforementioned HIS or be able to break into it remotely using a certain method and perform screen operations. The affected products and versions are as follows: CENTUM VP R5.01.00 to R5.04.20, R6.01.00 to R6.12.00 and R7.01.00.

The advisory is shared at web-material3.yokogawa.com. This vulnerability is known as CVE-2025-7741 since 07/17/2025. The exploitation appears to be difficult. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1078.001 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-209116). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Yokogawa Electric

Name

• CENTUM VP

Version

• R5.04.0
• R5.04.1
• R5.04.2
• R5.04.3
• R5.04.4
• R5.04.5
• R5.04.6
• R5.04.7
• R5.04.8
• R5.04.9
• R5.04.10
• R5.04.11
• R5.04.12
• R5.04.13
• R5.04.14
• R5.04.15
• R5.04.16
• R5.04.17
• R5.04.18
• R5.04.19
• R5.04.20
• R6.0
• R6.1
• R6.2
• R6.3
• R6.4
• R6.5
• R6.6
• R6.7
• R6.8
• R6.9
• R6.10
• R6.11
• R6.12.00
• R7.01

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