VDB-372200 · CVE-2026-40456 · EUVD-2026-37875

Chilek LAN Management System System Command exec os command injection

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	2.70

Summaryinfo

A vulnerability labeled as critical has been found in Chilek LAN Management System. This issue affects the function exec of the component System Command Handler. Such manipulation leads to os command injection. This vulnerability is referenced as CVE-2026-40456. The attack needs to be initiated within the local network. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Chilek LAN Management System (the affected version unknown) and classified as critical. Affected by this issue is the function exec of the component System Command Handler. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published by Tymoteusz Dominik as 9fcb4de19b7d76394898dbc124252b86b07ac0ed. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-40456 since 04/13/2026. The exploitation is known to be easy. The attack needs to be done within the local network. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

Applying the patch 9fcb4de is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-37875). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Chilek

Name

LAN Management System

CPE 2.3info

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CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 9fcb4de

Timelineinfo

04/13/2026 CVE reserved
06/18/2026 +66 days Advisory disclosed
06/18/2026 +0 days VulDB entry created
06/18/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 9fcb4de19b7d76394898dbc124252b86b07ac0ed
Researcher: Tymoteusz Dominik
Status: Confirmed

CVE: CVE-2026-40456 (🔒)
GCVE (CVE): GCVE-0-2026-40456
GCVE (VulDB): GCVE-100-372200
EUVD: 🔒

Entryinfo

Created: 06/18/2026 15:11
Updated: 06/18/2026 17:04
Changes: 06/18/2026 15:11 (69), 06/18/2026 17:04 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.