What is CVE-2018-21066?

CVE-2018-21066 is a critical-severity vulnerability in Google Android, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2020-04-08.

How severe is CVE-2018-21066?

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

Buffer overflow in Google Android

CVE-2018-21066

An issue was discovered on Samsung mobile devices with M(6.0) (Exynos or MediaTek chipsets) software. There is a buffer overflow in a Trustlet that can cause memory corruption. The Samsung ID is SVE-2018-11599 (July 2018).

Vulnerability class: Buffer Overflow

EPSS: 0.006 (43.4th percentile) — read the EPSS interpretation.

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.

Affected products

Google Android — versions 6.0
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-21066?: CVE-2018-21066 is a critical-severity vulnerability in Google Android, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2020-04-08.
How severe is CVE-2018-21066?: Critical severity. CVSS v3 base score is 9.8 out of 10.