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CVE-2018-21049 Details

Description

An issue was discovered on Samsung mobile devices with N(7.x) and O(8.X) (Exynos chipsets) software. There is an arbitrary memory write in a Trustlet because a secure driver allows access to sensitive APIs. The Samsung ID is SVE-2018-12881 (November 2018).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://security.samsungmobile.com/securityUpdate.smsb	CVE	Vendor Advisory
https://security.samsungmobile.com/securityUpdate.smsb	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
google android	7.0 7.1.0 7.1.1 7.1.2 8.0
CPE cpe:2.3:o:google:android:7.0:::::::* cpe:2.3:o:google:android:7.1.0:::::::* cpe:2.3:o:google:android:7.1.1:::::::* cpe:2.3:o:google:android:7.1.2:::::::* cpe:2.3:o:google:android:8.0:::::::* cpe:2.3:o:google:android:8.1:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Apr 9, 2020	Initial Analysis	[email protected]