Skip to content
Fencer Vulns
medium 5.5

CVE-2016-1237 json

nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related t…

published 2016-06-29 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-2338

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

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.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.6.2-2

debian advisories DEBIAN-CVE-2016-1237

  • linux Ubuntu 16.04 LTS 4.4.0-36.55
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1021.27
  • linux-lts-vivid Ubuntu 14.04 LTS 3.19.0-66.74~14.04.1
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-36.55~14.04.1
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1024.27

ubuntu advisories UBUNTU-CVE-2016-1237

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-source openSUSE Tumbleweed 4.8.13-1.1

opensuse advisories openSUSE-SU-2024:10128-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-1237 updated cvss 7.8

kernel: Missing check for permissions when setting ACL

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:C/I:N/A:N

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.