# CVE-2023-3181

## Summary

- **CVE ID:** CVE-2023-3181
- **Severity:** HIGH
- **CVSS Score:** 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-379
- **Published:** Jan 25, 2024
- **Last Modified:** Mar 13, 2026

## 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.

## Affected Products

- Splashtop — Splashtop Software Updater (0)

## References

- [CNA](https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.03%
- **EPSS Percentile:** 6.9

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._