Critical vulnerabilities in VMware can jeopardize the entire business

Critical vulnerabilities in VMware provide a good opportunity to review virtualization security and consider the future direction of the infrastructure.

13. August 2026

VMware is the foundation on which an entire company is often built

Broadcom has issued a security advisory regarding several serious vulnerabilities in VMware products. These primarily affect solutions such as vCenter Server, ESX/ESXi, VMware Cloud Foundation, Workstation, and Fusion.

Simply put: some of these vulnerabilities could allow an attacker to bypass authentication, gain access to the virtualization platform’s administration, execute malicious code, or move from a compromised virtual server to the host server itself.

These are critical CVE vulnerabilities with potentially serious implications for business operations. If your servers, applications, databases, or internal systems run on VMware, the problem may not be limited to a single service. It could affect a significant portion of your infrastructure and impact the availability of systems, data, and day-to-day operations.

When virtualization is compromised, everything built on top of it is at risk

The virtualization platform is often an invisible but essential layer of corporate IT. It runs accounting systems, e-commerce sites, internal applications, databases, file servers, development environments, and security tools.

If an attacker gains access here, the consequences can be significantly worse than if a single specific application were compromised. The risks include service outages, data loss, ransomware, leaks of sensitive information, or a long and costly recovery.

At the same time, it’s not just about security. Many companies today are also grappling with rising costs, licensing changes, support availability, and dependence on a single vendor when it comes to VMware. Current vulnerabilities can therefore serve as a good impetus to take a strategic look at virtualization.

The first step is to address the risk; the second is to plan for the future

It makes immediate sense to verify which versions of VMware products you are using, whether the vulnerabilities affect you, and how quickly security patches need to be applied. vCenter and ESX/ESXi hosts should be a top priority.

Your response should also include access controls, restricting access to administrative interfaces, reviewing backups, and verifying that recovery actually works. A backup that no one has ever tested is no guarantee.

In addition, it’s worth asking a broader question: Does VMware still make sense for us, both technically and economically? For some companies, the answer is yes. For others, Proxmox may be a suitable alternative, offering a more open model, often lower costs, and less dependence on a single vendor’s licensing policy.

Railsformers can help with both security and migration

Railsformers will help you determine your current risk level. We’ll audit your VMware environment, versions, access controls, backups, and basic security settings, and recommend specific next steps.

If you want to continue using VMware, we’ll help secure and stabilize it. If you’re concerned about costs, licensing, or want to reduce your dependence on VMware, we’ll design and execute a secure migration to Proxmox.

When transitioning to Proxmox, we’ll help with designing the target architecture, capacity planning, networking, storage, backups, monitoring, downtime management, and a recovery plan. The goal is a secure and controlled transition without unnecessary risk to your business operations.