What’s Vulnerable › Vulnerabilities
CVE-2020-12431
- Severity: medium (CVSS 6.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-05-21 · updated 2026-06-17
- Weakness: CWE-732
Description
A Windows privilege change issue was discovered in Splashtop Software Updater before 1.5.6.16. Insecure permissions on the configuration file and named pipe allow for local privilege escalation to NT AUTHORITY/SYSTEM, by forcing a permission change to any Splashtop files and directories, with resultant DLL hijacking. This product is bundled with Splashtop Streamer (before 3.3.8.0) and Splashtop Business (before 3.3.8.0).
Affected products
- Splashtop Software Updater: before 1.5.6.16 — fixed in 1.5.6.16
- Splashtop Streamer: before 3.3.8.0 — fixed in 3.3.8.0
How to fix
Upgrade to a fixed version: Splashtop Software Updater 1.5.6.16; Splashtop Streamer 3.3.8.0. Check the vendor advisory for mitigations.
References
- https://improsec.com/tech-blog/privilege-escalation-vulnerability-in-splashtop-streamer
- https://support-splashtopbusiness.splashtop.com/hc/en-us/articles/360042648231-Splashtop-Streamer-version-3-3-8-0-for-Windows-released-includes-SOS-version-3-3-8-0
- https://improsec.com/tech-blog/privilege-escalation-vulnerability-in-splashtop-streamer
- https://support-splashtopbusiness.splashtop.com/hc/en-us/articles/360042648231-Splashtop-Streamer-version-3-3-8-0-for-Windows-released-includes-SOS-version-3-3-8-0
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