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CVE-2018-10471

21
FAUCET Score

CVE-2018-10471 is a denial-of-service vulnerability affecting Xen through version 4.10.x, specifically impacting x86 PV guest operating systems. It allows a local, low-privileged attacker to crash the hypervisor due to an out-of-bounds zero write during unexpected INT 80 processing, stemming from an incorrect fix for a previous CVE. Rated Medium severity with a CVSS score of 6.5, the attack requires local access and has low complexity, leading to high availability impact. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.10.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
34.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 89th percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Remediation

Vendor Advisories (1)

redhatCVE-2018-10471Moderate

xen: x86 PV guest may crash Xen with XPTI

Apr 25, 2018

References

lists.debian.org / debian-lts-announce/2018/10/msg00009.html
security.gentoo.org / glsa/201810-06
debian.org / security/2018/dsa-4201
Third Party Advisory
xenbits.xen.org / xsa/advisory-259.html
MitigationVendor Advisory
securityfocus.com / bid/104003
Third Party AdvisoryVDB Entry