CVE-2016-7093

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Summary

CVECVE-2016-7093
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-09-21 14:25:24 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionXen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.

Risk And Classification

Primary CVSS: v3.0 8.2 HIGH from [email protected]

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

EPSS: 0.000600000 probability, percentile 0.185120000 (date 2026-05-06)

Problem Types: CWE-264 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary8.2HIGHCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
2.0[email protected]Primary7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:L/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Xen Xen 4.5.3 All All All
Operating System Xen Xen 4.6.3 All All All
Operating System Xen Xen 4.7.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Xen CVE-2016-7093 Local Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Xen Instruction Pointer Truncation Flaw Lets Local Users on a Guest System Gain Elevated Privileges on the Host System - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
XSA-186 - Xen Security Advisories af854a3a-2127-422b-91ae-364da2661108 xenbits.xen.org Patch, Vendor Advisory
Citrix XenServer Multiple Security Updates af854a3a-2127-422b-91ae-364da2661108 support.citrix.com Third Party Advisory
Xen: Multiple vulnerabilities (GLSA 201611-09) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
xenbits.xen.org/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-... af854a3a-2127-422b-91ae-364da2661108 xenbits.xen.org Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500808 Alpine Linux Security Update for xen
  • 504551 Alpine Linux Security Update for xen

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