CVE-2024-23847

LocalSystem code execution via permissive file access

Published May 31, 2024 · Updated Apr 8, 2025

Incorrect default permissions in Cast Launcher in Unifier and Unifier Cast allow local users to execute code as LocalSystem. Cast Launcher assigns overly permissive file access rights to files it creates; Yokogawa has not publicly identified the affected paths or ACL entries. Local access with low privileges is required, and successful exploitation permits program installation and data modification or deletion.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect default permissions in Cast Launcher in Unifier and Unifier Cast allow local users to execute code as LocalSystem. Cast Launcher assigns overly permissive file access rights to files it creates; Yokogawa has not publicly identified the affected paths or ACL entries. Local access with low privileges is required, and successful exploitation permits program installation and data modification or deletion.

The record

CVE
CVE-2024-23847
Published
May 31, 2024
Updated
Apr 8, 2025
Vendor
Yokogawa Rental & Lease Corporation
Product
Unifier
Classifications
CWE-276, T1574.010, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2025Record 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=5.0 <5.10
  2. Affected versionversion=and the patch "20240527" not applied
  3. Affected versionversion=Version.5.0 or later but prior to v5.10.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Yokogawa Rental & Lease Corporation · Unifierversion=5.0 <5.10; version=and the patch "20240527" not applied; version=Version.5.0 or later but prior to v5.10.6
Yokogawa Rental & Lease Corporation · Unifier Castversion=and the patch "20240527" not applied; version=Version.5.0 or later but prior to v5.10.6; version=Version.6.0 or later but prior to v6.5.0

Published CVSS scores

5.9CISACVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.8JPCERT/CCCVSS: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-276Incorrect Default Permissions
T1574.010Services File Permissions Weakness
T1068Exploitation for Privilege Escalation

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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