What is CVE-2016-4568?

CVE-2016-4568 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Buffer Overflow flaw (CWE-119). CVE-2016-4568 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2016-4568?

CVE-2016-4568 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2016-4568?

No patch is currently available for CVE-2016-4568. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2016-4568 actively exploited?

CVE-2016-4568 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2016-4568

High

drivers/media/v4l2-core/videobuf2-v4l2.c in the Linux kernel before 4.5.3 allows local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a crafted number of planes in a VIDIOC_DQBUF ioctl call.

Package Linux Kernel

Published 2016-05-23

Last modified 2026-05-06

CVSS version 3.1

Patch available

Awaiting data

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

Weakness type

CWE-119

CVE-2016-4568 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2016-4568 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel.org
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3

Vendor Advisory
Openwall
http://www.openwall.com/lists/oss-security/2016/05/07/4

Mailing List Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1334316

Issue Tracking
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2c1f6951a8a82e6de0d82b1158b5e493fc6c54ab
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/2c1f6951a8a82e6de0d82b1158b5e493fc6c54ab
Patch

Details

CVE ID CVE-2016-4568

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2016-05-23

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2016-4568?

CVE-2016-4568 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2016-4568 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2016-4568?

CVE-2016-4568 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2016-4568?

No patch is currently available for CVE-2016-4568. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2016-4568 actively exploited?

No — CVE-2016-4568 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →