What is CVE-2018-21087?

CVE-2018-21087 is a critical-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-04-08.

How severe is CVE-2018-21087?

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

Buffer overflow in Google Android

CVE-2018-21087

An issue was discovered on Samsung mobile devices with L(5.x), M(6.x), and N(7.x) software. There is a vnswap heap-based buffer overflow via the store function, with resultant privilege escalation. The Samsung ID is SVE-2017-10599 (January 2018).

Vulnerability class: Buffer Overflow

EPSS: 0.004 (36.1th 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 5.0, 5.0.1, 5.0.2
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-21087?: CVE-2018-21087 is a critical-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-04-08.
How severe is CVE-2018-21087?: Critical severity. CVSS v3 base score is 9.8 out of 10.