What is CVE-2026-20978?

CVE-2026-20978 is a medium-severity vulnerability in Samsung Android, classified under CWE-269 IMPOPER PRIVILEGE MANAGEMENT. CVSS score: 6.1/10. Published 2026-02-04.

How severe is CVE-2026-20978?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Samsung Android

CVE-2026-20978

Improper authorization in KnoxGuardManager prior to SMR Feb-2026 Release 1 allows local attackers to bypass the persistence configuration of the application.

EPSS: 0.001 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

Affected products

Samsung Android — versions 13.0, 14.0, 15.0
Samsung Mobile Devices — versions SMR Feb-2026 Release in Android 13, 14, 15

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-20978?: CVE-2026-20978 is a medium-severity vulnerability in Samsung Android, classified under CWE-269 IMPOPER PRIVILEGE MANAGEMENT. CVSS score: 6.1/10. Published 2026-02-04.
How severe is CVE-2026-20978?: Medium severity. CVSS v3 base score is 6.1 out of 10.