CVE-2023-3181

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

25/01/2024

Last modified:

14/08/2025

Description

The C:\Program Files (x86)\Splashtop\Splashtop Software Updater\uninst.exe process creates a folder at C:\Windows\Temp~nsu.tmp and copies itself to it as Au_.exe. The C:\Windows\Temp~nsu.tmp\Au_.exe file is automatically launched as SYSTEM when the system reboots or when a standard user runs an MSI repair using Splashtop Streamer’s Windows Installer. Since the C:\Windows\Temp~nsu.tmp folder inherits permissions from C:\Windows\Temp and Au_.exe is susceptible to DLL hijacking, standard users can write a malicious DLL to it and elevate their privileges.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:splashtop:mirroring360_receiver::::::::		2.4.0.1 (excluding)
cpe:2.3:a:splashtop:mirroring360_sender::::::::		1.3.0.0 (excluding)
cpe:2.3:a:splashtop:splashtop:::::business:::*		3.5.6.0 (excluding)
cpe:2.3:a:splashtop:splashtop:::::personal:::*		3.5.8.0 (excluding)
cpe:2.3:a:splashtop:splashtop_for_rmm::::::::		3.5.8.0 (excluding)
cpe:2.3:a:splashtop:streamer:::::-:windows::		3.5.6.0 (excluding)
cpe:2.3:o:microsoft:windows:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-3181

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools