Out-of-Bounds Write Vulnerability in Samsung Mobile Software
CVE-2026-21116

5.1MEDIUM

Key Information:

Vendor

Samsung
Status
Samsung Devices
Vendor
CVE Published:
12 October 2026

What is CVE-2026-21116?

A vulnerability in Samsung's libsmkvextractor.so prior to the SMR Oct-2026 Release 1 permits local attackers to perform out-of-bounds write operations. This could lead to unauthorized memory access, potentially allowing attackers to manipulate application behavior or crash the system. It's critical for users to update their software to mitigate the risks associated with this vulnerability.

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:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.