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CVE-2017-2583

27
FAUCET Score

CVE-2017-2583 describes a vulnerability in the Linux kernel, specifically affecting versions prior to 4.9.5, where improper emulation of a "MOV SS, NULL selector" instruction in the KVM hypervisor allows guest OS users to trigger a denial of service or escalate privileges within the guest. This vulnerability carries a high CVSS score of 8.4, indicating a local attack vector with low complexity that can lead to 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 surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.9.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.4HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 66th percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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 (4)

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-0:3.10.0-514.26.1.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

Vendor Advisories (1)

redhatCVE-2017-2583Moderate

Kernel: Kvm: vmx/svm potential privilege escalation inside guest

Jan 12, 2017

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Issue TrackingThird Party Advisory
access.redhat.com / errata/RHSA-2017:1615
access.redhat.com / errata/RHSA-2017:1616
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatch
github.com / torvalds/linux/commit/33ab91103b3415e12457e3104f0e4517ce12d0f3
Issue TrackingPatchThird Party Advisory
usn.ubuntu.com / 3754-1
debian.org / security/2017/dsa-3791
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.9.5
Release NotesVendor Advisory
openwall.com / lists/oss-security/2017/01/19/2
Mailing ListThird Party Advisory
securityfocus.com / bid/95673
Third Party AdvisoryVDB Entry