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CVE-2026-12819— DVP-12SE Missing Authentication and Unauthorized Write access Vulnerability

Quick assessment

Affected
deltaww DVP-12SE
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

deltaww dvp-12se是deltaww公司的一个可编程逻辑控制器模块。 Delta Electronics DVP12SE存在授权问题漏洞，该漏洞源于通过指定端口暴露Modbus TCP服务且未设置身份验证或访问控制，允许未经身份验证的攻击者与安全敏感的PLC功能进行交互。

AI Predicted 7.5 Difficulty: Trivial EPSS 0.54% · P43

Affected Version Matrix 1

VendorProduct Version RangeStatus
deltaww DVP-12SE * affected
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I. Basic Information for CVE-2026-12819

Vulnerability Information
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Vulnerability Title
DVP-12SE Missing Authentication and Unauthorized Write access Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Delta Electronics DVP12SE PLC exposes a Modbus TCP service over a specified port without authentication or access control, permitting unauthenticated interaction with security-sensitive PLC functions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Delta Electronics DVP12SE 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
deltaww dvp-12se是deltaww公司的一个可编程逻辑控制器模块。 Delta Electronics DVP12SE存在授权问题漏洞，该漏洞源于通过指定端口暴露Modbus TCP服务且未设置身份验证或访问控制，允许未经身份验证的攻击者与安全敏感的PLC功能进行交互。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
deltaww DVP-12SE * -

II. Public POCs for CVE-2026-12819

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III. Intelligence Information for CVE-2026-12819

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Other References for CVE-2026-12819 (1)

Same Patch Batch · deltaww · 2026-06-30 · 3 CVEs total

CVE-2026-12818 DVP-12SE Exposure of Sensitive Information Vulnerability
CVE-2026-12578 DTMSoft - Deserialization of Untrusted Data Vulnerability

IV. Related Vulnerabilities

Same product: DVP-12SE
Same vendor: deltaww
Same weakness: CWE-306

V. Comments for CVE-2026-12819

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