CVE-2017-10923

Name: CVE-2017-10923
Creator: NVD / NIST
Published: 2017-07-05T01:29:00.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.80%

Last modified Jun 17, 2026

CVE-2017-10923 is a vulnerability of currently unknown severity. Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.. EPSS estimates a 1.80% chance of exploitation in the next 30 days.

Description

Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.

Metrics

EPSS Probability

1.80%

75.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Xen	Xen	4.6.0
Xen	Xen	4.6.1
Xen	Xen	4.6.2
Xen	Xen	4.6.4
Xen	Xen	4.6.5
Xen	Xen	4.7.1
Xen	Xen	4.8.0
Xen	Xen	4.8.1

References

http://www.securityfocus.com/bid/99160Tool Signature, VDB Entry
http://www.securitytracker.com/id/1038735Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201708-03
https://xenbits.xen.org/xsa/advisory-225.htmlMailing List, Mitigation, Vendor Advisory
http://www.securityfocus.com/bid/99160Tool Signature, VDB Entry
http://www.securitytracker.com/id/1038735Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201708-03
https://xenbits.xen.org/xsa/advisory-225.htmlMailing List, Mitigation, Vendor Advisory

Timeline

Published: Jul 5, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-10923?

Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.

How severe is CVE-2017-10923?

Severity scoring for CVE-2017-10923 is pending analysis. The EPSS model estimates a 1.80% probability of exploitation in the next 30 days.

How do I fix CVE-2017-10923?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-10923?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST