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CVE-2026-40456— OS Command Injection in LMS

Quick assessment

Affected
LMS LMS
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.

lms是lms个人开发者开源的一款学习管理系统软件。 LMS存在命令注入漏洞，该漏洞源于 exec()函数中IP地址参数未经过正确验证，可能导致攻击者执行任意操作系统命令。

AI Predicted 9.8 Difficulty: Easy EPSS 2.79% · P86

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
LMS LMS < 9fcb4de affected
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I. Basic Information for CVE-2026-40456

Vulnerability Information
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Vulnerability Title
OS Command Injection in LMS
Source: CVE Program / CVE List V5
Vulnerability Description
An OS Command Injection vulnerability exists in LMS (LAN Management System) before commit 9fcb4de due to an IP address parameter being passed to the "exec()" function without proper validation, allowing attackers to execute arbitrary operating system commands.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
LMS 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
lms是lms个人开发者开源的一款学习管理系统软件。 LMS存在命令注入漏洞，该漏洞源于 exec()函数中IP地址参数未经过正确验证，可能导致攻击者执行任意操作系统命令。
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
LMS LMS 0 ~ 9fcb4de -

II. Public POCs for CVE-2026-40456

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III. Intelligence Information for CVE-2026-40456

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Patches & Fixes for CVE-2026-40456 (1)

Security Blog Posts for CVE-2026-40456 (1)

Vendor Pages for CVE-2026-40456 (1)

Same Patch Batch · LMS · 2026-06-18 · 3 CVEs total

CVE-2026-40455 SQL Injection in LMS
CVE-2026-40457 Reflected XSS in LMS

IV. Related Vulnerabilities

Same product: LMS
Same vendor: LMS
Same weakness: CWE-78

V. Comments for CVE-2026-40456

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