CVE-2016-7093

Severity: high (CVSS 8.2 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-09-21 · updated 2026-06-17
Weakness: CWE-264

Description

Xen 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.

Affected products

xen: 4.5.3, 4.6.3, 4.7.0

References

http://support.citrix.com/article/CTX216071
http://www.securityfocus.com/bid/92865
http://www.securitytracker.com/id/1036752
http://xenbits.xen.org/xsa/advisory-186.html
http://xenbits.xen.org/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch
https://security.gentoo.org/glsa/201611-09
http://support.citrix.com/article/CTX216071
http://www.securityfocus.com/bid/92865
http://www.securitytracker.com/id/1036752
http://xenbits.xen.org/xsa/advisory-186.html
http://xenbits.xen.org/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch
https://security.gentoo.org/glsa/201611-09

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