Delta Electronics EIP Builder

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1. EXECUTIVE SUMMARY CVSS v4 6.7 ATTENTION: Low attack complexity Vendor: Delta Electronics Equipment: EIP Builder Vulnerability: Improper Restriction of XML External Entity Reference
2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to potentially process dangerous external entities, resulting in disclosure of sensitive information.
3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Delta Electronics products are affected: EIP Builder: Versions 1.11 and prior 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER RESTRICTION OF XML EXTERNAL ENTITY REFERENCE CWE-611 The affected product is vulnerable to an XML external entity vulnerability, which could allow an attacker to disclose sensitive information. CVE-2025-57704 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.5 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N). A CVSS v4 score has also been calculated for CVE-2025-57704. A base score of 6.7 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Taiwan 3.4 RESEARCHER kimiya working with Trend Micro Zero Day Initiative reported this vulnerability to CISA.
4. MITIGATIONS Delta Electronics recommends users updating to V1.12. For more information refer to Delta Electronics’ security advisory Delta-PCSA-2025-00013. Delta Electronics offers the following general recommendations: Do not click on untrusted Internet links or open unsolicited email attachments. Avoid exposing control systems and equipment to the Internet. Place systems and devices behind a firewall and isolate them from the business network. When remote access is required, use a secure access method, such as a virtual private network (VPN). If you have any product-related support concerns, find a contact from the Delta Electronics portal page for any information or materials you may require. CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely.
5. UPDATE HISTORY September 2, 2025: Initial Publication