CVE-2022-42330: Xen

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact.

Affected products

• Xen Xen: version 4.17.0 only

Published 2023-01-26. Last modified 2026-06-17.