Use After Free Vulnerability in Samsung WSM Service
CVE-2026-21120

8.9HIGH

Key Information:

Vendor

Samsung
Status
Samsung Devices
Vendor
CVE Published:
12 October 2026

What is CVE-2026-21120?

A use after free vulnerability in the WSM Service, found in versions prior to the SMR Oct-2026 Release 1, may allow local attackers to execute arbitrary code with system privileges. This could potentially lead to unauthorized access and control over the affected system, posing significant security risks.

Affected Version(s)

Samsung Mobile Devices SMR Oct-2026 Release in Android 14, 15, 16, 17

References

https://security.samsungmobile.com/securityUpdate.smsb?ye...

CVSS V4

Score:
8.9
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

.