CVE-2026-40456

8.6 highEPSS 0.9%

High (8.6). EPSS 0.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.6 high

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

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2026-06-18
Modified: 2026-06-22
Record from: the NVD, synced 2026-10-19

References

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

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