What is CVE-2021-25345?

CVE-2021-25345 is a medium-severity vulnerability in Google Android. CVSS score: 4.0/10. Published 2021-03-04.

How severe is CVE-2021-25345?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Vulnerability in Google Android

CVE-2021-25345

Graphic format mismatch while converting video format in hwcomposer prior to SMR Mar-2021 Release 1 results in kernel panic due to unsupported format.

Published 2021-03-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.001 (1.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.8% 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

Google Android — versions 10.0, 11.0
Samsung Exynos
Samsung Mobile Devices — versions Q(10.0), R(11.0)

References

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

Frequently asked questions

What is CVE-2021-25345?: CVE-2021-25345 is a medium-severity vulnerability in Google Android. CVSS score: 4.0/10. Published 2021-03-04.
How severe is CVE-2021-25345?: Medium severity. CVSS v3 base score is 4.0 out of 10.