CVE-2026-21031 PUBLISHED

Assigner: SamsungMobile
Reserved: 11.12.2025 Published: 05.06.2026 Updated: 05.06.2026

Improper authorization in AppBlock prior to SMR Jun-2026 Release 1 allows local attacker to launch arbitrary activity. User interaction is required for triggering this vulnerability.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS Score: 5.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	Samsung Mobile
Product	Samsung Mobile Devices
Versions	Default: affected unaffected from SMR Jun-2026 Release in Android 15, 16 to * (excl.)

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=06

Problem Types

CWE-285: Improper Authorization