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CVE-2017-10923

18
FAUCET Score

CVE-2017-10923 describes a denial-of-service vulnerability affecting Xen hypervisors through version 4.8.x. This flaw stems from improper validation of a vCPU array index when an SGI (Software Generated Interrupt) is sent, allowing a malicious guest OS user to crash the hypervisor. With a CVSS score of 6.5 (Medium), this vulnerability can be exploited remotely with low attack complexity and requires low privileges, leading to a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.6.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*
4.6.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*
4.6.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.6.2:*:*:*:*:*:*:*
4.6.4CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:*
4.6.5CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.6.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 89th percentile among its peer group of 21,974 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation

Vendor Advisories (1)

redhatCVE-2017-10923Moderate

xen: arm: vgic: Out-of-bound access when sending SGIs (XSA-225)

Jun 20, 2017

References

security.gentoo.org / glsa/201708-03
xenbits.xen.org / xsa/advisory-225.html
Mailing ListMitigationVendor Advisory
securityfocus.com / bid/99160
Tool SignatureVDB Entry
securitytracker.com / id/1038735
Third Party AdvisoryVDB Entry