CVE-2016-7777

MediumCVSS 6.3/10Last modified Jun 17, 2026

Description

Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it.

Metrics

CVSS 3.0 6.3/10CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-362

Affected software

No affected versions have been published.

Timeline

Published: Oct 7, 2016
Last modified: Jun 17, 2026
NVD status: Modified

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