CVE-2016-7777

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…

published October 7, 2016

CVSS
—
EPSS
0%
Percentile
21.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00303 · 21.7th percentile
Published
2016-10-07T14:00Z
EPSS history
Timeline
  • 07 OCT 14:00Z
    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…
    cvelistv5