Splashtop Software Updater prior 1.5.6.21 uninst.exe temp file

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Splashtop Software Updater. It has been rated as critical. The affected element is an unknown function of the file C:\Program Files (x86)\Splashtop\Splashtop Software Updater\uninst.exe. This manipulation causes temp file. The identification of this vulnerability is CVE-2023-3181. The attack can only be executed locally. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Splashtop Software Updater and classified as critical. Affected by this vulnerability is an unknown function of the file C:\Program Files (x86)\Splashtop\Splashtop Software Updater\uninst.exe. The manipulation with an unknown input leads to a temp file vulnerability. The CWE definition for the vulnerability is CWE-379. The product creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was shared 01/25/2024 as MNDT-2023-0015. The advisory is shared at github.com. This vulnerability is known as CVE-2023-3181 since 06/09/2023. Technical details are known, but no exploit is available.

Upgrading to version 1.5.6.21 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-43862). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector (Google Inc.): 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Temp file
CWE: CWE-379 / CWE-377
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Software Updater 1.5.6.21

Timelineinfo

06/09/2023 🔍
01/25/2024 +230 days 🔍
01/25/2024 +0 days 🔍
08/14/2025 +567 days 🔍

Sourcesinfo

Advisory: MNDT-2023-0015
Status: Confirmed

CVE: CVE-2023-3181 (🔍)
GCVE (CVE): GCVE-0-2023-3181
GCVE (VulDB): GCVE-100-252049
EUVD: 🔍

Entryinfo

Created: 01/25/2024 19:10
Updated: 08/14/2025 17:44
Changes: 01/25/2024 19:10 (49), 06/03/2025 21:37 (15), 08/14/2025 17:44 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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