CVE-2016-9382

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.

Metrics

CVSS 3.0 7.8/10CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-264

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.securityfocus.com/bid/94470Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037341Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-192.htmlPatch, Vendor Advisory
https://security.gentoo.org/glsa/201612-56
https://support.citrix.com/article/CTX218775Patch, Third Party Advisory
http://www.securityfocus.com/bid/94470Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037341Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-192.htmlPatch, Vendor Advisory
https://security.gentoo.org/glsa/201612-56
https://support.citrix.com/article/CTX218775Patch, Third Party Advisory

Timeline

Published: Jan 23, 2017
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2016

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