Summary
Successful exploitation of these vulnerabilities could allow an attacker to terminate the software stack process, cause a denial-of-service condition, or execute arbitrary code.
The following versions of Yokogawa CENTUM VP R6, R7 are affected:
- Vnet/IP Interface Package for CENTUM VP R6 (VP6C3300) <=R1.07.00 (CVE-2025-1924, CVE-2025-48019, CVE-2025-48020, CVE-2025-48021, CVE-2025-48022, CVE-2025-48023)
- Vnet/IP Interface Package for CENTUM VP R7 (VP7C3300) <=R1.07.00 (CVE-2025-1924, CVE-2025-48019, CVE-2025-48020, CVE-2025-48021, CVE-2025-48022, CVE-2025-48023)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 6.9 | Yokogawa | Yokogawa CENTUM VP R6, R7 | Out-of-bounds Write, Reachable Assertion, Integer Underflow (Wrap or Wraparound), Improper Handling of Length Parameter Inconsistency |
Background
- Critical Infrastructure Sectors: Critical Manufacturing, Energy, Food and Agriculture
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: Japan
Vulnerabilities
CVE-2025-1924
If the affected product receives maliciously crafted packets, a DoS attack may cause Vnet/IP communication functions to stop or arbitrary programs to be executed.
Affected Products
Yokogawa CENTUM VP R6, R7
Yokogawa
Yokogawa Vnet/IP Interface Package for CENTUM VP R6 (VP6C3300): <=R1.07.00, Yokogawa Vnet/IP Interface Package for CENTUM VP R7 (VP7C3300): <=R1.07.00
known_affected
Remediations
Mitigation
Yokogawa recommends users apply patch software (R1.08.00).
Mitigation
Yokogawa recommends users contact a local supporting office for further information or support. https://contact.yokogawa.com/cs/gw?c-id=000498
Mitigation
For more information and details on implementing these mitigations, users should see the Yokogawa advisory YSAR-26-0002 at https://web-material3.yokogawa.com/1/39281/files/YSAR-26-0002-E.pdf
Relevant CWE: CWE-787 Out-of-bounds Write
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 6.9 | MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H |
CVE-2025-48019
If the affected product receives maliciously crafted packets, Vnet/IP software stack process may be terminated.
Affected Products
Yokogawa CENTUM VP R6, R7
Yokogawa
Yokogawa Vnet/IP Interface Package for CENTUM VP R6 (VP6C3300): <=R1.07.00, Yokogawa Vnet/IP Interface Package for CENTUM VP R7 (VP7C3300): <=R1.07.00
known_affected
Remediations
Mitigation
Yokogawa recommends users apply patch software (R1.08.00).
Mitigation
Yokogawa recommends users contact a local supporting office for further information or support. https://contact.yokogawa.com/cs/gw?c-id=000498
Mitigation
For more information and details on implementing these mitigations, users should see the Yokogawa advisory YSAR-26-0002 at https://web-material3.yokogawa.com/1/39281/files/YSAR-26-0002-E.pdf
Relevant CWE: CWE-617 Reachable Assertion
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 5.3 | MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
CVE-2025-48020
If the affected product receives maliciously crafted packets, Vnet/IP software stack process may be terminated.
Affected Products
Yokogawa CENTUM VP R6, R7
Yokogawa
Yokogawa Vnet/IP Interface Package for CENTUM VP R6 (VP6C3300): <=R1.07.00, Yokogawa Vnet/IP Interface Package for CENTUM VP R7 (VP7C3300): <=R1.07.00
known_affected
Remediations
Mitigation
Yokogawa recommends users apply patch software (R1.08.00).
Mitigation
Yokogawa recommends users contact a local supporting office for further information or support. https://contact.yokogawa.com/cs/gw?c-id=000498
Mitigation
For more information and details on implementing these mitigations, users should see the Yokogawa advisory YSAR-26-0002 at https://web-material3.yokogawa.com/1/39281/files/YSAR-26-0002-E.pdf
Relevant CWE: CWE-617 Reachable Assertion
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 5.3 | MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
CVE-2025-48021
If theaffected product receives maliciously crafted packets, Vnet/IP software stack process may be terminated.
Affected Products
Yokogawa CENTUM VP R6, R7
Yokogawa
Yokogawa Vnet/IP Interface Package for CENTUM VP R6 (VP6C3300): <=R1.07.00, Yokogawa Vnet/IP Interface Package for CENTUM VP R7 (VP7C3300): <=R1.07.00
known_affected
Remediations
Mitigation
Yokogawa recommends users apply patch software (R1.08.00).
Mitigation
Yokogawa recommends users contact a local supporting office for further information or support. https://contact.yokogawa.com/cs/gw?c-id=000498
Mitigation
For more information and details on implementing these mitigations, users should see the Yokogawa advisory YSAR-26-0002 at https://web-material3.yokogawa.com/1/39281/files/YSAR-26-0002-E.pdf
Relevant CWE: CWE-191 Integer Underflow (Wrap or Wraparound)
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 5.3 | MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
CVE-2025-48022
If the affected product receives maliciously crafted packets, Vnet/IP software stack process may be terminated.
Affected Products
Yokogawa CENTUM VP R6, R7
Yokogawa
Yokogawa Vnet/IP Interface Package for CENTUM VP R6 (VP6C3300): <=R1.07.00, Yokogawa Vnet/IP Interface Package for CENTUM VP R7 (VP7C3300): <=R1.07.00
known_affected
Remediations
Mitigation
Yokogawa recommends users apply patch software (R1.08.00).
Mitigation
Yokogawa recommends users contact a local supporting office for further information or support. https://contact.yokogawa.com/cs/gw?c-id=000498
Mitigation
For more information and details on implementing these mitigations, users should see the Yokogawa advisory YSAR-26-0002 at https://web-material3.yokogawa.com/1/39281/files/YSAR-26-0002-E.pdf
Relevant CWE: CWE-130 Improper Handling of Length Parameter Inconsistency
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 5.3 | MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
CVE-2025-48023
If the affected product receives maliciously crafted packets, Vnet/IP software stack process may be terminated.
Affected Products
Yokogawa CENTUM VP R6, R7
Yokogawa
Yokogawa Vnet/IP Interface Package for CENTUM VP R6 (VP6C3300): <=R1.07.00, Yokogawa Vnet/IP Interface Package for CENTUM VP R7 (VP7C3300): <=R1.07.00
known_affected
Remediations
Mitigation
Yokogawa recommends users apply patch software (R1.08.00).
Mitigation
Yokogawa recommends users contact a local supporting office for further information or support. https://contact.yokogawa.com/cs/gw?c-id=000498
Mitigation
For more information and details on implementing these mitigations, users should see the Yokogawa advisory YSAR-26-0002 at https://web-material3.yokogawa.com/1/39281/files/YSAR-26-0002-E.pdf
Relevant CWE: CWE-617 Reachable Assertion
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 5.3 | MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
Acknowledgments
- Dmitry Sklyar and Demid Uzenkov of Positive Technologies reported these vulnerabilities to Yokogawa
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as:
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages.
Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. These vulnerabilities are not exploitable remotely. These vulnerabilities have a high attack complexity.
Revision History
- Initial Release Date: 2026-02-26
| Date | Revision | Summary |
|---|---|---|
| 2026-02-26 | 1 | Initial Republication of YSAR-26-0002 |



