Improper Authorization Flaw in AppBlock by Samsung
CVE-2026-21031

5.2MEDIUM

Key Information:

Vendor

Samsung
Status
Samsung Devices
Vendor
CVE Published:
5 June 2026

What is CVE-2026-21031?

An improper authorization vulnerability exists in AppBlock, allowing local attackers to initiate arbitrary activities. This flaw necessitates user interaction for exploitation, emphasizing the need for vigilance among users. The vulnerability affects versions of AppBlock released before SMR June 2026 Release 1, highlighting the importance of updating to mitigate potential risks.

Affected Version(s)

Samsung Mobile Devices SMR Jun-2026 Release in Android 15, 16

References

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

CVSS V4

Score:
5.2
Severity:
MEDIUM
Confidentiality:
High
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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