CVE-2026-40456
OS Command Injection in LMS
HIGH
8.6
CVSS Score
Published: June 18, 2026 at 10:58 AM UTC
Updated: June 22, 2026 at 11:18 PM UTC
1 product affected across 1 vendorLMS
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Severity
HIGH8.6
Exploit prediction
EPSS 0.9%
SSVC
No known exploit
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.6HIGHCERT-PL
Vector?
Quick Info
StatusDEFERRED
CWE
CWE-78
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