CVE-2016-1237: linux linux_kernel Improper Access Control
Vulnerability summary
CVE-2016-1237 is a medium (CVSS 5.5) Improper Access Control vulnerability in linux linux_kernel. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 30.3% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 6Timeline
- 29-06-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.36%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.36% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu5 products
- linux< 4.4.0-36.55
- linux-lts-vivid< 3.19.0-66.74~14.04.1
- linux-lts-xenial< 4.4.0-36.55~14.04.1
- linux-raspi2< 4.4.0-1021.27
- linux-snapdragon< 4.4.0-1024.27
Debian1 product
- linux< 4.6.2-2
Linux1 product
- linux_kernel≤ 4.6.3
3 vendors · 7 products
References
19 links- bugzilla.redhat.com/show_bug.cgi?id=1350845X Refsource CONFIRM
- github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4X Refsource CONFIRMVendor Advisory