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CVE-2016-9806

25
FAUCET Score

CVE-2016-9806 is a race condition vulnerability in the netlink_dump function of the Linux kernel (before version 4.6.3) that allows local users to trigger a double free, leading to a denial of service or potentially other unspecified impacts. This vulnerability carries a high CVSS score of 7.8, indicating a significant risk due to its low attack complexity and potential for high impact on confidentiality, integrity, and availability. Despite its severity, 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
>= 3.12, < 3.12.62CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.13, < 3.14.73CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.15, < 3.16.37CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 3.18.37CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.19, < 4.1.28CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
29.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 68th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-693.rt56.617.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-693.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2016-9806Moderate

kernel: netlink: double-free in netlink_dump

May 15, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
PatchVendor Advisory
lists.openwall.net / netdev/2016/05/15/69
Mailing ListThird Party Advisory
access.redhat.com / errata/RHSA-2017:1842
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2077
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2669
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatch
github.com / torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520
PatchThird Party Advisory
source.android.com / security/bulletin/2017-03-01.html
Third Party Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.6.3
Release NotesVendor Advisory
openwall.com / lists/oss-security/2016/12/03/4
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/94653
Third Party AdvisoryVDB Entry
securitytracker.com / id/1037968
Third Party AdvisoryVDB Entry