CVE-2024-23940Public exploit

Local privilege escalation via uncontrolled DLL search path

Published Jan 29, 2024 · Updated May 29, 2025

DLL search-path hijacking in Trend Micro Security 2023 uiAirSupport 6.0.2092 and earlier allows local users to execute arbitrary code. uiAirSupport resolves a library through an uncontrolled search path, allowing an attacker-controlled proxy DLL to replace the expected library. Exploitation requires local placement of the proxy DLL and user interaction; its code runs in uiAirSupport's context and can escalate privileges.

CVSS severity7.8
High
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DLL search-path hijacking in Trend Micro Security 2023 uiAirSupport 6.0.2092 and earlier allows local users to execute arbitrary code. uiAirSupport resolves a library through an uncontrolled search path, allowing an attacker-controlled proxy DLL to replace the expected library. Exploitation requires local placement of the proxy DLL and user interaction; its code runs in uiAirSupport's context and can escalate privileges.

The record

CVE
CVE-2024-23940
Published
Jan 29, 2024
Updated
May 29, 2025
Vendor
Trend Micro
Product
Trend Micro Security (Consumer)
Classifications
CWE-427, T1574.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 29, 2024CVE publishedPublication date reported by the CVE source.
  2. May 29, 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=2023 (6.0) <6.0.2093

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Trend Micro · Trend Micro Security (Consumer)version=2023 (6.0) <6.0.2093

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.002Hijack Execution Flow: DLL Side-Loading

Public exploit references

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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