Buffer overflow in Samsung Android

CVE-2025-20963

Out-of-bounds write in memory initialization in libsavsvc.so prior to SMR May-2025 Release 1 allows local attackers to write out-of-bounds memory.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (5.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L.

Affected products

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

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20963?: CVE-2025-20963 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Write. CVSS score: 6.6/10. Published 2025-05-07.
How severe is CVE-2025-20963?: Medium severity. CVSS v3 base score is 6.6 out of 10.