Improper Input Validation in Samsung's Media Processing Software
CVE-2026-21124

8.6HIGH

Key Information:

Vendor

Samsung
Status
Samsung Devices
Vendor
CVE Published:
12 October 2026

What is CVE-2026-21124?

The media processing software libsimba.heifdec.media.samsung.so in Samsung devices is susceptible to an improper input validation issue. This vulnerability can be exploited by local attackers, potentially allowing them to execute arbitrary code. It is crucial for users to update their systems to the latest version to mitigate this security risk.

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:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.