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CVE-2026-51541

Quick assessment

Affected
n/a n/a
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.

EIPStackGroup OpENer是EIPStackGroup的一款开源的 EtherNet/IP 协议栈，专为 I/O 适配器设备设计，支持多 I/O 和显式连接，帮助开发者快速构建符合 ODVA 规范的 EtherNet/IP 合规产品。 EIPStackGroup OpENer 2.3.0版本存在安全漏洞，该漏洞源于CIP消息解析中越界读取问题，解析器信任攻击者控制的path_size并且在没有剩余长度边界的情况下继续解码路径段，导致在接收栈缓冲区的末尾之外读取。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-51541

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in CIP message parsing when handling malformed explicit requests with a forged EPath size. An attacker can send a valid ENIP SendRRData frame carrying a very short CIP payload whose path_size field claims that many more path words are present than are actually available. Because the parser trusts the attacker-controlled path_size and continues decoding path segments without a remaining-length boundary, it reads beyond the end of the stack receive buffer.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
EIPStackGroup OpENer 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EIPStackGroup OpENer是EIPStackGroup的一款开源的 EtherNet/IP 协议栈，专为 I/O 适配器设备设计，支持多 I/O 和显式连接，帮助开发者快速构建符合 ODVA 规范的 EtherNet/IP 合规产品。 EIPStackGroup OpENer 2.3.0版本存在安全漏洞，该漏洞源于CIP消息解析中越界读取问题，解析器信任攻击者控制的path_size并且在没有剩余长度边界的情况下继续解码路径段，导致在接收栈缓冲区的末尾之外读取。
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
- n/a n/a -

II. Public POCs for CVE-2026-51541

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III. Intelligence Information for CVE-2026-51541

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Vendor Advisories for CVE-2026-51541 (1)

Proof of Concept for CVE-2026-51541 (1)

Same Patch Batch · n/a · 2026-07-13 · 15 CVEs total

CVE-2026-15516 5.6 MEDIUM MacCMS Pro Installation Index.php step5 authorization
CVE-2026-15530 5.3 MEDIUM WuzhiCMS Attachment API index.php listimage information disclosure
CVE-2026-15533 4.7 MEDIUM DedeCMS Column Management search.php code injection
CVE-2026-15605 3.1 LOW wandb Artifact Integrity Validation hashutil.py ArtifactManifestEntry.download weak hash
CVE-2026-26396 OpenBMB XAgent 路径遍历漏洞
CVE-2025-45869 LogicalDOC Enterprise 服务端请求伪造漏洞
CVE-2026-52533 D-Link DIR-1253 安全漏洞
CVE-2026-51539 Stéphane Raimbault libmodbus 安全漏洞
CVE-2026-51536 EIPStackGroup OpENer 安全漏洞
CVE-2026-51821 Shenzhou Shihan Technology Video Conference System 安全漏洞
CVE-2026-51537 EIPStackGroup OpENer 安全漏洞
CVE-2026-51538 EIPStackGroup OpENer 安全漏洞
CVE-2026-51540 EIPStackGroup OpENer 安全漏洞
CVE-2026-39042 MikroTik RouterOS 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2026-51541

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