CVE-2023-40505Network attack vector

Unauthenticated code execution via createThumbnailByMovie command injection

Published May 3, 2024 · Updated Sep 18, 2024

Command injection in LG Simple Editor 3.21.0 allows remote attackers to execute arbitrary code without authentication. The createThumbnailByMovie method passes a user-supplied string to a system call without validating or neutralizing command syntax. A network-reachable service exposes the method, and successful exploitation runs injected commands as SYSTEM with full host control.

CVSS severity9.8
Critical
EPSS probability2.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in LG Simple Editor 3.21.0 allows remote attackers to execute arbitrary code without authentication. The createThumbnailByMovie method passes a user-supplied string to a system call without validating or neutralizing command syntax. A network-reachable service exposes the method, and successful exploitation runs injected commands as SYSTEM with full host control.

The record

CVE
CVE-2023-40505
Published
May 3, 2024
Updated
Sep 18, 2024
Vendor
LG Electronics
Product
LG Simple Editor
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.21.0
  2. Affected versionversion=LG Simple Editor 3.21.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LG Electronics · LG Simple Editorversion=0 <3.21.0; version=LG Simple Editor 3.21.0

Published CVSS scores

9.8Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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