CVE-2016-7154: Xen

Medium severity, CVSS 6.7. EPSS: 0.5% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.

Affected products

• Xen Xen: version 4.4.0 only; version 4.4.1 only; version 4.4.2 only; version 4.4.3 only; version 4.4.4 only

Published 2016-09-21. Last modified 2026-06-17.