What is CVE-2019-20540?

CVE-2019-20540 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2020-03-24.

How severe is CVE-2019-20540?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Out-of-bounds Read in Google Android

CVE-2019-20540

An issue was discovered on Samsung mobile devices with N(7.x), O(8.x), and P(9.0) (Exynos chipsets) software. There is a buffer over-read and possible information leak in the core touch screen driver. The Samsung ID is SVE-2019-14942 (November 2019).

Vulnerability class: Buffer Overflow

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

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:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (2.5th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.5% 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 7.0, 7.1.0, 7.1.1

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

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

Frequently asked questions

What is CVE-2019-20540?: CVE-2019-20540 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2020-03-24.
How severe is CVE-2019-20540?: Medium severity. CVSS v3 base score is 5.5 out of 10.