CVE-2024-9496

Privilege escalation via installer DLL search path

Published Jan 24, 2025 · Updated Feb 18, 2025

DLL hijacking in Silicon Laboratories USBXpress Development Kit 3.5.1 and earlier allows local users to execute code with elevated privileges. The impacted installer resolves a DLL through an uncontrolled search path, allowing a planted library to load when the installer runs. Exploitation requires local access and a user to run the impacted installer; the loaded library executes in the installer’s elevated context.

CVSS severity8.6
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DLL hijacking in Silicon Laboratories USBXpress Development Kit 3.5.1 and earlier allows local users to execute code with elevated privileges. The impacted installer resolves a DLL through an uncontrolled search path, allowing a planted library to load when the installer runs. Exploitation requires local access and a user to run the impacted installer; the loaded library executes in the installer’s elevated context.

The record

CVE
CVE-2024-9496
Published
Jan 24, 2025
Updated
Feb 18, 2025
Vendor
Silicon Laboratories
Product
USBXpress Development Kit
Classifications
CWE-427, T1574.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 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=0 <=3.5.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Silicon Laboratories · USBXpress Development Kitversion=0 <=3.5.1

Published CVSS scores

8.6Silicon LabsCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.001Hijack Execution Flow: DLL

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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