Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-53476

Quick assessment

Affected
OpenPLC OpenPLC_v3
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.

OpenPLC是Thiago Alves个人开发者的一种开源的可编程逻辑控制器。可为自动化和研究提供低成本的工业解决方案。 OpenPLC V3存在安全漏洞，该漏洞源于ModbusTCP服务器功能存在缺陷，可能导致拒绝服务攻击。

CVSS 5.3 · Medium EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-53476

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC _v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connections to trigger this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
缺失文件描述符或句柄在有效生命周期之后的释放处理
Source: CVE Program / CVE List V5
Vulnerability Title
OpenPLC 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenPLC是Thiago Alves个人开发者的一种开源的可编程逻辑控制器。可为自动化和研究提供低成本的工业解决方案。 OpenPLC V3存在安全漏洞，该漏洞源于ModbusTCP服务器功能存在缺陷，可能导致拒绝服务攻击。
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
OpenPLC OpenPLC_v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58 -

II. Public POCs for CVE-2025-53476

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-53476

请登录查看更多情报信息。

Vendor Advisories for CVE-2025-53476 (1)

IV. Related Vulnerabilities

Same product: OpenPLC_v3
Same vendor: OpenPLC
Same weakness: CWE-775

V. Comments for CVE-2025-53476

No comments yet

Leave a comment