Out-of-bounds Read in Samsung Android

CVE-2025-21009

Out-of-bounds read in decoding malformed frame header in libsavsvc.so prior to Android 15 allows local attackers to cause memory corruption.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (2.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Samsung Android
Samsung Mobile Libsavsvc.so — versions Android 15

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

mobile.security@samsung.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-21009?: CVE-2025-21009 is a medium-severity vulnerability in Samsung Android, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2025-07-08.
How severe is CVE-2025-21009?: Medium severity. CVSS v3 base score is 5.5 out of 10.