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CVE-2016-3841

24
FAUCET Score

CVE-2016-3841 is a local privilege escalation and denial-of-service vulnerability affecting the IPv6 stack in Linux kernel versions prior to 4.3.3, including Google Android. It carries a CVSS score of 7.3 (HIGH), indicating that a local attacker can exploit a crafted sendmsg system call to trigger a use-after-free condition, leading to system crash or privilege escalation. There is no known public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
6.0.1CPE matchmatch criteria
cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*
< 3.2.75CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.12.52CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.13, < 3.16.35CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 3.18.25CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.3
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 56th percentile among its peer group of 759 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-642.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-514.rt56.420.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-514.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.2 Extended Update SupportFixed in: kernel-0:3.10.0-327.41.3.el7
View patch
googlevendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2016-3841Important

kernel: use-after-free via crafted IPV6 sendmsg for raw / tcp / udp / l2tp sockets.

Aug 8, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Issue TrackingPatch
rhn.redhat.com / errata/RHSA-2016-0855.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-2574.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-2584.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-2695.html
Third Party Advisory
github.com / torvalds/linux/commit/45f6fad84cc305103b28d73482b344d7f5b76f39
Issue TrackingPatch
source.android.com / security/bulletin/2016-08-01.html
Vendor Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.3.3
Release Notes
securityfocus.com / bid/92227
Third Party AdvisoryVDB Entry