What is CVE-2021-25455?

CVE-2021-25455 is a low-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2021-09-09.

How severe is CVE-2021-25455?

Low severity. CVSS v3 base score is 3.3 out of 10.

Out-of-bounds Read in Google Android

CVE-2021-25455

OOB read vulnerability in libsaviextractor.so library prior to SMR Sep-2021 Release 1 allows attackers to access arbitrary address through pointer via forged avi file.

Vulnerability class: Buffer Overflow

Published 2021-09-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Android — versions 8.1, 9.0, 10.0
Samsung Mobile Devices — versions O(8.1), P(9.0), Q(10.0), R(11.0)

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

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

Frequently asked questions

What is CVE-2021-25455?: CVE-2021-25455 is a low-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2021-09-09.
How severe is CVE-2021-25455?: Low severity. CVSS v3 base score is 3.3 out of 10.