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CVE-2018-14646

20
FAUCET Score

CVE-2018-14646 is a NULL pointer dereference vulnerability in the Linux kernel (before 4.15-rc8) affecting the __netlink_ns_capable() function, impacting Linux and Red Hat systems. This medium-severity vulnerability (CVSS 5.5) allows a local attacker to trigger a kernel panic and denial of service with low attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
4.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.15:rc1:*:*:*:*:*:*
4.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.15:rc2:*:*:*:*:*:*
4.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:*
4.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:4.15:rc4:*:*:*:*:*:*

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:N/I:N/A:H

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

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
32.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 87th percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (5)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-957.1.3.rt56.913.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-957.1.3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.5 Extended Update SupportFixed in: kernel-0:3.10.0-862.25.3.el7
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2018-14646Moderate

kernel: NULL pointer dereference in af_netlink.c:__netlink_ns_capable() allows for denial of service

Nov 26, 2018

References

access.redhat.com / errata/RHSA-2018:3651
Vendor Advisory
access.redhat.com / errata/RHSA-2018:3666
Vendor Advisory
access.redhat.com / errata/RHSA-2018:3843
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchVendor Advisory
git.kernel.org / pub/scm/linux/kernel/git/torvalds/linux.git/commit
PatchThird Party Advisory
marc.info
PatchThird Party Advisory