The vulnerability of Xen hypervisors relates to the improper assignment of permissions for critical resources. This allows attackers to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of Xen hypervisors is related to the occurrence of exceptions that are handled without modifying the processor’s level. Some interrupts are inevitably included when an exception is generated. Exploiting this vulnerability can allow a remote attacker to access confidential data,...