CVE-2015-6640

Name: CVE-2015-6640
Creator: NVD / NIST
Published: 2016-01-06T19:59:05.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.73%

Last modified Jun 17, 2026

CVE-2015-6640 is a vulnerability of currently unknown severity. The prctl_set_vma_anon_name function in kernel/sys.c in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 does not ensure that only one vma is accessed in a certain update action, which allows attackers to gain privileges or cause a denial of service (vma list corruption) via a crafted application, aka internal bug 20017123.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

The prctl_set_vma_anon_name function in kernel/sys.c in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 does not ensure that only one vma is accessed in a certain update action, which allows attackers to gain privileges or cause a denial of service (vma list corruption) via a crafted application, aka internal bug 20017123.

Metrics

EPSS Probability

0.73%

49.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions
Google	Android	4.4.4
Google	Android	5.0
Google	Android	5.1.1
Google	Android	6.0

References

Timeline

Published: Jan 6, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6640?

How severe is CVE-2015-6640?

Severity scoring for CVE-2015-6640 is pending analysis. The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6640?

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-2015-6640?

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

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Source: NVD / NIST