VULNERABILITY INTELLIGENCE

CVE-2021-4147

CVSS score6.5 MEDIUM

EPSS probability0.24%

CISA KEVNot currently listed

Published2022-03-25

Last modified2026-06-17

Description

A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.