What is CVE-2019-20607?

CVE-2019-20607 is a critical-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-03-24.

How severe is CVE-2019-20607?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Google Android

CVE-2019-20607

An issue was discovered on Samsung mobile devices with N(7.x), O(8.x), and P(9.0) (MSM8996, MSM8998, Exynos7420, Exynos7870, Exynos8890, and Exynos8895 chipsets) software. A heap overflow in the keymaster Trustlet allows attackers to write to TEE memory, and achieve arbitrary code execution. The Samsung ID is SVE-2019-14126 (May 2019).

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Google Android — versions 7.0, 7.1.0, 7.1.1
Qualcomm Msm8996
Qualcomm Msm8998
Samsung Exynos 7420
Samsung Exynos 7870
Samsung Exynos 8890
Samsung Exynos 8895

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2019-20607?: CVE-2019-20607 is a critical-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-03-24.
How severe is CVE-2019-20607?: Critical severity. CVSS v3 base score is 9.8 out of 10.