What is CVE-2019-20594?

CVE-2019-20594 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 6.8/10. Published 2020-03-24.

How severe is CVE-2019-20594?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Buffer overflow in Google Android

CVE-2019-20594

An issue was discovered on Samsung mobile devices with O(8.1) and P(9.0) (Exynos chipsets) software. A heap overflow exists in the bootloader. The Samsung ID is SVE-2019-14371 (July 2019).

Vulnerability class: Buffer Overflow

Published 2020-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (3.0th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.0% 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

Google Android — versions 8.1, 9.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2019-20594?: CVE-2019-20594 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 6.8/10. Published 2020-03-24.
How severe is CVE-2019-20594?: Medium severity. CVSS v3 base score is 6.8 out of 10.