CVE-2026-40456

EUVD-2026-37875
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.
OS Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.6 HIGH
ADJACENT
LOW
LOW
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 61.17%
Common Weakness Enumeration
References
https://cert.pl/posts/2026/06/CVE-2026-40455
https://github.com/chilek/lms/commit/9fcb4de19b7d76394898dbc124252b86b07ac0ed
https://lms.org.pl/