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CVE-2017-6214

27
FAUCET Score

CVE-2017-6214 describes a denial-of-service vulnerability in the Linux kernel, specifically affecting versions prior to 4.9.11. This flaw resides in the tcp_splice_read function and can be triggered remotely by sending a specially crafted TCP packet with the URG flag. The vulnerability carries a high CVSS score of 7.5, indicating a low-complexity network attack that can lead to an infinite loop and soft lockup, effectively causing a denial of service. 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
<= 4.9.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.67%
Probability of exploitation in next 30 days
EPSS Percentile
90.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0467 is in the 84th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-696.3.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-514.26.1.rt56.442.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-514.26.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-514.rt56.228.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2017-6214Moderate

kernel: ipv4/tcp: Infinite loop in tcp_splice_read()

Feb 7, 2017

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Issue TrackingPatchThird Party Advisory
access.redhat.com / errata/RHSA-2017:1372
access.redhat.com / errata/RHSA-2017:1615
access.redhat.com / errata/RHSA-2017:1616
access.redhat.com / errata/RHSA-2017:1647
github.com / torvalds/linux/commit/ccf7abb93af09ad0868ae9033d1ca8108bdaec82
Issue TrackingPatchThird Party Advisory
source.android.com / security/bulletin/2017-09-01
debian.org / security/2017/dsa-3804
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.9.11
Release NotesVendor Advisory
securityfocus.com / bid/96421
securitytracker.com / id/1037897