What is CVE-2026-21030?

CVE-2026-21030 is a high-severity vulnerability in Samsung Android, classified under CWE-284: IMPROPER ACCESS CONTROL. CVSS score: 7.8/10. Published 2026-06-05.

How severe is CVE-2026-21030?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Samsung Android

CVE-2026-21030

Improper access control in MediaTek Audio HAL prior to SMR Jun-2026 Release 1 allows local attackers to trigger privileged functions.

EPSS: 0.001 (0.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Samsung Android — versions 14.0, 15.0, 16.0
Samsung Mobile Devices — versions SMR Jun-2026 Release in Android 14, 15, 16

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-21030?: CVE-2026-21030 is a high-severity vulnerability in Samsung Android, classified under CWE-284: IMPROPER ACCESS CONTROL. CVSS score: 7.8/10. Published 2026-06-05.
How severe is CVE-2026-21030?: High severity. CVSS v3 base score is 7.8 out of 10.