What is CVE-2018-21088?

CVE-2018-21088 is a high-severity vulnerability in Google Android, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2020-04-08.

How severe is CVE-2018-21088?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Google Android

CVE-2018-21088

An issue was discovered on Samsung mobile devices with N(7.x) software. An attacker can cause a reboot because InputMethodManagerService has an unprotected system service. The Samsung ID is SVE-2017-9995 (January 2018).

Published 2020-04-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Google Android — versions 7.0, 7.1.0, 7.1.1

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

References

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

Frequently asked questions

What is CVE-2018-21088?: CVE-2018-21088 is a high-severity vulnerability in Google Android, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2020-04-08.
How severe is CVE-2018-21088?: High severity. CVSS v3 base score is 7.5 out of 10.