CVE-2026-21031 — HIGH (7.8)

Vulnerability Description

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.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Samsung	Android	15.0

Related Weaknesses (CWE)

CWE-863

References

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

FAQ

What is CVE-2026-21031?

CVE-2026-21031 is a vulnerability with a CVSS score of 7.8 (HIGH). 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.

How severe is CVE-2026-21031?

CVE-2026-21031 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21031?

Check the references section above for vendor advisories and patch information. Affected products include: Samsung Android.