CVE-2023-40516

SYSTEM code execution via installer-set folder permissions

Published May 3, 2024 · Updated Sep 18, 2024

Local privilege escalation in LG Simple Editor 3.21.0 allows local users to execute arbitrary code as SYSTEM through its installer. The installer assigns overly permissive access to installation folders, but the published advisory does not identify the affected paths or ACL entries. Exploitation requires prior low-privileged code execution and permits replacement or modification of protected application content used with SYSTEM authority.

CVSS severity7.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in LG Simple Editor 3.21.0 allows local users to execute arbitrary code as SYSTEM through its installer. The installer assigns overly permissive access to installation folders, but the published advisory does not identify the affected paths or ACL entries. Exploitation requires prior low-privileged code execution and permits replacement or modification of protected application content used with SYSTEM authority.

The record

CVE
CVE-2023-40516
Published
May 3, 2024
Updated
Sep 18, 2024
Vendor
LG Electronics
Product
LG Simple Editor
Classifications
CWE-732
Attack vector
local
Privileges
authenticated

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

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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 vectorlocal
Required privilegesauthenticated

What is affected?

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

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource

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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