Vulnerability Report

CVE-2020-12431

Title: Splashtop Software Updater Privilege Escalation

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2020-12431.

CWE Category CWE-732
Published Date May 21, 2020
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 6.6 CVSS v3.1
Exploit Probability (EPSS)
0.55%

Vulnerability Summary

CVE-2020-12431: 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).

Impacted Vendors

S
splashtop 2

Reference Links

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
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.6
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
6.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:M/Au:N/C:N/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-12431 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

Affected Stack

No specific products linked.