CVE-2024-42053

SYSTEM code execution via writable DLL path

Published Jul 28, 2024 · Updated Aug 2, 2024

Privilege escalation in Splashtop Streamer for Windows before 3.6.0.0 allows local users to execute arbitrary code as SYSTEM during MSI repair. A repair-launched executable searches a user-writable folder under %TEMP% for version.dll and loads an attacker-supplied proxy DLL with SYSTEM privileges. Exploitation requires a reusable or restorable original MSI and the ability to force product reinstallation, after which the DLL gains complete SYSTEM-level control.

CVSS severity7.8
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Splashtop Streamer for Windows before 3.6.0.0 allows local users to execute arbitrary code as SYSTEM during MSI repair. A repair-launched executable searches a user-writable folder under %TEMP% for version.dll and loads an attacker-supplied proxy DLL with SYSTEM privileges. Exploitation requires a reusable or restorable original MSI and the ability to force product reinstallation, after which the DLL gains complete SYSTEM-level control.

The record

CVE
CVE-2024-42053
Published
Jul 28, 2024
Updated
Aug 2, 2024
Vendor
Splashtop
Product
Splashtop Streamer
Classifications
CWE-276, T1574.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 <3.6.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Splashtop · Splashtop Streamerversion=0 <3.6.0.0

Published CVSS scores

7.8MITRECVSS:3.1/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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
T1574.002Hijack Execution Flow: DLL Side-Loading

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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