The libvirt Project — Vulnerabilities & Security Advisories 3

The libvirt Project provides open-source APIs for managing platform virtualization, enabling control over KVM, Xen, QEMU and hypervisors. Historically, vulnerabilities have included remote code execution, privilege escalation, and denial-of-service flaws, often stemming from improper input validation in XML processing or unsafe library functions. The project maintains security-focused development practices, though past incidents like CVE-2020-25645 (privilege escalation) and CVE-2021-3592 (RCE) highlight ongoing risks. With three current CVEs, libvirt remains critical infrastructure requiring careful deployment, particularly in multi-tenant environments where compromised access could escalate to host systems.