What is CVE-2016-1237?

CVE-2016-1237 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-2016-1237 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2016-1237?

CVE-2016-1237 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:L/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2016-1237?

No patch is currently available for CVE-2016-1237. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2016-1237 actively exploited?

CVE-2016-1237 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-2016-1237

Medium

nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.

Package Linux Kernel

Published 2016-06-29

Last modified 2026-05-06

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

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

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

Weakness type

CWE-284

CVE-2016-1237 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-2016-1237 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
http://www.debian.org/security/2016/dsa-3607
Openwall
http://www.openwall.com/lists/oss-security/2016/06/25/2
Securityfocus
http://www.securityfocus.com/bid/91456
Ubuntu Security
http://www.ubuntu.com/usn/USN-3053-1
Ubuntu Security
http://www.ubuntu.com/usn/USN-3070-1
Ubuntu Security
http://www.ubuntu.com/usn/USN-3070-2
Ubuntu Security
http://www.ubuntu.com/usn/USN-3070-3
Ubuntu Security
http://www.ubuntu.com/usn/USN-3070-4
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1350845
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4
Patch

Details

CVE ID CVE-2016-1237

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2016-06-29

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2016-1237?

CVE-2016-1237 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-2016-1237 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2016-1237?

CVE-2016-1237 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:L/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2016-1237?

No patch is currently available for CVE-2016-1237. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2016-1237 actively exploited?

No — CVE-2016-1237 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 →