What is CVE-2016-3841?

CVE-2016-3841 is a High severity Linux kernel vulnerability with a CVSS score of 7.3 out of 10, classified as a Permissions, Privileges and Access Control flaw (CWE-264). CVE-2016-3841 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2016-3841?

CVE-2016-3841 has a CVSS score of 7.3 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2016-3841?

No patch is currently available for CVE-2016-3841. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2016-3841 actively exploited?

CVE-2016-3841 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-2016-3841

High

The IPv6 stack in the Linux kernel before 4.3.3 mishandles options data, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call.

Package Linux Kernel

Published 2016-08-06

Last modified 2026-05-06

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.3

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-264

CVE-2016-3841 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-2016-3841 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
http://rhn.redhat.com/errata/RHSA-2016-0855.html

Third Party Advisory
Red Hat
http://rhn.redhat.com/errata/RHSA-2016-2574.html

Third Party Advisory
Red Hat
http://rhn.redhat.com/errata/RHSA-2016-2584.html

Third Party Advisory
Red Hat
http://rhn.redhat.com/errata/RHSA-2016-2695.html

Third Party Advisory
Source
http://source.android.com/security/bulletin/2016-08-01.html

Vendor Advisory
Kernel.org
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.3

Release Notes
Securityfocus
http://www.securityfocus.com/bid/92227

Third Party Advisory VDB Entry
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=45f6fad84cc305103b28d73482b344d7f5b76f39
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/45f6fad84cc305103b28d73482b344d7f5b76f39
Patch

Details

CVE ID CVE-2016-3841

Severity High

CVSS score 7.3 / 10

CVSS version 3.1

Published 2016-08-06

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2016-3841?

CVE-2016-3841 is a High severity Linux kernel vulnerability with a CVSS score of 7.3 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2016-3841 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2016-3841?

CVE-2016-3841 has a CVSS score of 7.3 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2016-3841?

No patch is currently available for CVE-2016-3841. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2016-3841 actively exploited?

No — CVE-2016-3841 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 →