What is CVE-2015-2686?

CVE-2015-2686 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Permissions, Privileges and Access Control flaw (CWE-264). CVE-2015-2686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2015-2686?

CVE-2015-2686 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2015-2686?

No patch is currently available for CVE-2015-2686. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2015-2686 actively exploited?

CVE-2015-2686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/264.html

CVE-2015-2686

High

net/socket.c in the Linux kernel 3.19 before 3.19.3 does not validate certain range data for (1) sendto and (2) recvfrom system calls, which allows local users to gain privileges by leveraging a subsystem that uses the copy_from_iter function in the iov_iter interface, as demonstrated by the Bluetooth subsystem.

Package Linux Kernel

Published 2016-05-02

Last modified 2026-05-06

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-264

CVE-2015-2686 is a Permissions, Privileges and Access Control vulnerability

What is Permissions, Privileges and Access Control?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2015-2686 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Grsecurity
http://grsecurity.net/~spender/viro.txt
Twitter
http://twitter.com/grsecurity/statuses/579050211605102592
Twitter
http://twitter.com/grsecurity/statuses/579060953477701632
Twitter
http://twitter.com/grsecurity/statuses/579075689439059968
Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3
Openwall
http://www.openwall.com/lists/oss-security/2015/03/23/14
Securityfocus
http://www.securityfocus.com/bid/73286
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1205242
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4de930efc23b92ddf88ce91c405ee645fe6e27ea
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/4de930efc23b92ddf88ce91c405ee645fe6e27ea
Patch

Details

CVE ID CVE-2015-2686

Severity High

CVSS score 7.8 / 10

CVSS version 3.0

Published 2016-05-02

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2015-2686?

CVE-2015-2686 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2015-2686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2015-2686?

CVE-2015-2686 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2015-2686?

No patch is currently available for CVE-2015-2686. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2015-2686 actively exploited?

No — CVE-2015-2686 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. View CWE-264 on MITRE CWE →