Improper Input Validation in Samsung GalaxyDiagnostics Software
CVE-2026-20987

8.7HIGH

Key Information:

Vendor

Samsung
Status
Galaxydiagnostics
Vendor
CVE Published:
4 February 2026

What is CVE-2026-20987?

The GalaxyDiagnostics software from Samsung suffers from a critical flaw due to improper input validation. This vulnerability allows local attackers to exploit the system and execute privileged commands, which could compromise the integrity and security of the device. It is essential for users to update to version 3.5.050 or later to mitigate this risk and protect their systems against potential exploitation.

Affected Version(s)

GalaxyDiagnostics 3.5.050

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.