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CVE-2017-1000407

25
FAUCET Score

CVE-2017-1000407 describes a denial-of-service vulnerability in Linux Kernel versions 2.6.32 and later, affecting distributions like Canonical, Debian, and Red Hat. An attacker can trigger a kernel panic by flooding the diagnostic port 0x80, leading to system unavailability. This vulnerability carries a high CVSS score of 7.4, indicating a network-adjacent attack with low complexity, no user interaction, and a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
7.6CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
7.6CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 80th percentile among its peer group of 1,875 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-862.rt56.804.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-862.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Extended Update SupportFixed in: kernel-0:3.10.0-693.47.2.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2017-1000407Moderate

Kernel: KVM: DoS via write flood to I/O port 0x80

Dec 1, 2017

References

access.redhat.com / errata/RHSA-2018:0676
Third Party Advisory
access.redhat.com / errata/RHSA-2018:1062
Third Party Advisory
access.redhat.com / errata/RHSA-2019:1170
access.redhat.com / security/cve/cve-2017-1000407
Third Party Advisory
lists.debian.org / debian-lts-announce/2017/12/msg00004.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3583-1
Third Party Advisory
usn.ubuntu.com / 3583-2
Third Party Advisory
usn.ubuntu.com / 3617-1
Third Party Advisory
usn.ubuntu.com / 3617-2
Third Party Advisory
usn.ubuntu.com / 3619-1
Third Party Advisory
usn.ubuntu.com / 3619-2
Third Party Advisory
usn.ubuntu.com / 3632-1
Third Party Advisory
debian.org / security/2017/dsa-4073
Third Party Advisory
debian.org / security/2018/dsa-4082
Third Party Advisory
spinics.net / lists/kvm/msg159809.html
Patch
openwall.com / lists/oss-security/2017/12/04/2
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/102038
Third Party AdvisoryVDB Entry