CVE-2018-21089

Name: CVE-2018-21089
Creator: NVD / NIST
Published: 2020-04-08T14:15:12.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.83%

Last modified Jun 17, 2026

CVE-2018-21089 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered on Samsung mobile devices with N(7.x) (MT6755/MT6757 Mediatek models) software. Bootloader has an integer overflow that leads to arbitrary code execution via the download offset control. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

Description

An issue was discovered on Samsung mobile devices with N(7.x) (MT6755/MT6757 Mediatek models) software. Bootloader has an integer overflow that leads to arbitrary code execution via the download offset control. The Samsung ID is SVE-2017-10732 (January 2018).

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.83%

52.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Google	Android	7.0
Google	Android	7.1.0
Google	Android	7.1.1
Google	Android	7.1.2

References

https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory
https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory

Timeline

Published: Apr 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-21089?

How severe is CVE-2018-21089?

CVE-2018-21089 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.

How do I fix CVE-2018-21089?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-21089?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST