Huang Wenlong

**Name of the Vulnerable Software and Affected Versions** Xen version 3.0.3 **Description** The issue allows local SMP guest users to cause a denial of service, resulting in a host crash. This is achieved by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread. **Recommendations** For Xen version 3.0.3, consider updating to a newer version that addresses this issue, as no specific fix is provided for this version. At the moment, there is no information about a newer version that contains a fix for this vulnerability.