What is CVE-2025-21071?

CVE-2025-21071 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 5.7/10. Published 2025-11-05.

How severe is CVE-2025-21071?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Buffer overflow in Samsung Android

CVE-2025-21071

Out-of-bounds write in handling opcode in fingerprint trustlet prior to SMR Nov-2025 Release 1 allows local privileged attackers to write out-of-bounds memory.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (1.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Samsung Android — versions 13.0, 14.0, 15.0
Samsung Mobile Devices — versions SMR Nov-2025 Release in Android 13, 14, 15, 16

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-21071?: CVE-2025-21071 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 5.7/10. Published 2025-11-05.
How severe is CVE-2025-21071?: Medium severity. CVSS v3 base score is 5.7 out of 10.