CVE-2011-1780: Xen

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread.

Affected products

• Xen Xen: version 3.0.3 only

Published 2014-01-07. Last modified 2026-06-16.