4.7 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
26.7%
The compatibility mode hypercall argument translation in Xen 3.3.x through
4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests
to cause a denial of service (host crash) via vectors involving altering
the high halves of registers while in 64-bit mode.