CVE-2018-21055

Name: CVE-2018-21055
Creator: NVD / NIST
Published: 2020-04-08T18:15:13.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.83%

Last modified Jun 17, 2026

CVE-2018-21055 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered on Samsung mobile devices with N(7.0) (Qualcomm models using MSM8996 chipsets) software. A device can be rooted with a custom image to execute arbitrary scripts in the INIT context. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

Description

An issue was discovered on Samsung mobile devices with N(7.0) (Qualcomm models using MSM8996 chipsets) software. A device can be rooted with a custom image to execute arbitrary scripts in the INIT context. The Samsung ID is SVE-2018-11940 (September 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-20

Affected Software

Vendor	Product	Versions
Google	Android	7.0

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-2018-21055?

How severe is CVE-2018-21055?

CVE-2018-21055 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-2018-21055?

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-2018-21055?

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

Scan your code now

Source: NVD / NIST