CVE-2020-12431

What it is

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).

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account, but needs a user to act. High risk of data tampering, service disruption.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-05-21 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:51 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 6.6 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-05-21 17:15 UTC

Last modified

2026-06-17 02:51 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-732 · Incorrect permission assignment

Record status

Modified

Affected

• Splashtop Software Updater < 1.5.6.16
• Splashtop Streamer < 3.3.8.0

Attack profile CVSS 3.1 · 6.6

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-12431.md and follow it. Check whether this project is affected by CVE-2020-12431. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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