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CVE-2016-1237

16
FAUCET Score

CVE-2016-1237 describes a local privilege escalation vulnerability in the nfsd component of the Linux kernel, affecting versions up to 4.6.3. This flaw allows local users to bypass file-permission restrictions by manipulating POSIX Access Control Lists (ACLs). Rated with a CVSSv3 score of 5.5 (Medium), the vulnerability has a low attack complexity and requires local access, potentially leading to high confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.6.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
29.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 85th percentile among its peer group of 15,932 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-1237Important

kernel: Missing check for permissions when setting ACL

Jun 24, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4
Vendor Advisory
debian.org / security/2016/dsa-3607
openwall.com / lists/oss-security/2016/06/25/2
securityfocus.com / bid/91456
ubuntu.com / usn/USN-3053-1
ubuntu.com / usn/USN-3070-1
ubuntu.com / usn/USN-3070-2
ubuntu.com / usn/USN-3070-3
ubuntu.com / usn/USN-3070-4