What is CVE-2015-9021?

CVE-2015-9021 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Access Control flaw (CWE-284). CVE-2015-9021 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2015-9021?

CVE-2015-9021 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2015-9021?

No patch is currently available for CVE-2015-9021. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2015-9021 actively exploited?

CVE-2015-9021 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Improper Access Control (CWE-284)?

The product does not restrict or incorrectly restricts access to a resource from an unauthorised actor. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/284.html

CVE-2015-9021

Medium

In all Android releases from CAF using the Linux kernel, access control to SMEM memory was not enabled.

Package Linux Kernel

Published 2017-06-13

Last modified 2026-05-13

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness type

CWE-284

CVE-2015-9021 is a Improper Access Control vulnerability

What is Improper Access Control?

The product does not restrict or incorrectly restricts access to a resource from an unauthorised actor. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2015-9021 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/98874

Third Party Advisory VDB Entry
Securitytracker
http://www.securitytracker.com/id/1038623
Source
https://source.android.com/security/bulletin/2017-06-01

Vendor Advisory

Details

CVE ID CVE-2015-9021

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2017-06-13

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2015-9021?

CVE-2015-9021 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Access Control flaw (CWE-284) . CVE-2015-9021 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2015-9021?

CVE-2015-9021 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2015-9021?

No patch is currently available for CVE-2015-9021. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2015-9021 actively exploited?

No — CVE-2015-9021 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Access Control (CWE-284)?

The product does not restrict or incorrectly restricts access to a resource from an unauthorised actor. View CWE-284 on MITRE CWE →