CVE-2026-40456 - Vulnerability Details - OpenCVE

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.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

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References

Link	Providers
https://cert.pl/posts/2026/06/CVE-2026-40455
https://github.com/chilek/lms/commit/9fcb4de19b7d76394898dbc124252b86b07ac0ed
https://lms.org.pl/

History

Thu, 18 Jun 2026 16:45:00 +0000

Type	Values Removed	Values Added
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.
Title		OS Command Injection in LMS
Weaknesses		CWE-78
References		https://cert.pl/posts/2026/06/CVE-2026-40455 https://github.com/chilek/lms/commit/9fcb4de19b7d76394898dbc124252b86b07ac0ed https://lms.org.pl/
Metrics		cvssV4_0 `{'score': 8.6, 'vector': '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'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published: 2026-06-18T10:58:51.790Z

Updated: 2026-06-18T12:29:40.271Z

Reserved: 2026-04-13T09:36:21.532Z

Link: CVE-2026-40456

Vulnrichment

Updated: 2026-06-18T12:29:35.613Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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