The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation, which allows local HVM guests to cause a denial of service (host. Rated high severity (CVSS 8.3), this vulnerability is low attack complexity.
Denial Of Service
Xen
NVD
CVSS 2.0
8.3
EPSS
2.4%