CVE-2018-19964: Xen

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in Xen 4.11.x allowing x86 guest OS users to cause a denial of service (host OS hang) because the p2m lock remains unavailable indefinitely in certain error conditions.

Affected products

• Xen Xen: from 4.11.0, up to and including 4.11.1

Published 2018-12-08. Last modified 2026-06-17.