VMware provides virtualization and cloud infrastructure software; flaws or misconfigurations can expose hosts, workloads, credentials, and management systems.
Search across headline titles and summaries.
Background for this topic.
VMware is a virtualization platform that runs multiple virtual machines on shared physical servers. Its ESXi hypervisor provides the underlying isolation, while vCenter Server centrally manages hosts, virtual machines, networks, and storage. Because these components operate beneath or across many workloads, compromise of a host or management account can expose multiple systems; virtual-machine isolation reduces risk but is not an absolute security boundary.
Security teams should treat ESXi hosts and management services as privileged infrastructure: restrict management interfaces, separate administrative networks, enforce strong authentication and role-based access, monitor administrative actions, and promptly assess security advisories and patches. Vulnerabilities in the hypervisor, management plane, or virtual networking and storage layers can enable unauthorized access, guest-to-host escape, or service disruption, depending on the flaw and configuration. Incident investigations should also account for host and vCenter logs, snapshots, templates, and backups, which can contain sensitive data or retained credentials.
Over 37,000 internet-exposed VMware ESXi instances are vulnerable to CVE-2025-22224, a critical out-of-bounds write flaw that is actively exploited in the wild. [...]
Broadcom warned customers today about three VMware zero-days, tagged as exploited in attacks and reported by the Microsoft Threat Intelligence Center. [...]