CVE-2018-7540: Debian Linux

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

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

Affected products

• Debian Debian Linux: version 9.0 only
• Xen Xen: up to and including 4.10.0

Published 2018-02-27. Last modified 2026-06-17.