What is CVE-2025-21072?

CVE-2025-21072 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 5.7/10. Published 2025-12-02.

How severe is CVE-2025-21072?

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

Buffer overflow in Samsung Android

CVE-2025-21072

Out-of-bounds write in decoding metadata in fingerprint trustlet prior to SMR Dec-2025 Release 1 allows local privileged attackers to write out-of-bounds memory.

Vulnerability class: Buffer Overflow

Published 2025-12-02 · last modified 2026-09-26.

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.

EPSS exploit prediction

EPSS: 0.001 (1.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

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

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security.samsungmobile.com/securityUpdate.smsb (Vendor Advisory)

Frequently asked questions

What is CVE-2025-21072?: CVE-2025-21072 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 5.7/10. Published 2025-12-02.
How severe is CVE-2025-21072?: Medium severity. CVSS v3 base score is 5.7 out of 10.