VMware provides virtualization and cloud infrastructure software; flaws or misconfigurations can expose hosts, workloads, credentials, and management systems.
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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.
Weekly headline count for the current query.
Mozilla has released updates to address two critical flaws in Firefox for which it warned that exploit code has been published
Ivanti, Fortinet, n8n, SAP, and VMware have released security fixes for various vulnerabilities that could be exploited by bad actors to bypass authentication and execute arbitrary code
A new Kyber ransomware operation is targeting Windows systems and VMware ESXi endpoints in recent attacks, with one variant implementing Kyber1024 post-quantum encryption. [...]
Omnissa telemetry suggests business buyers are loving Apple and Google End-user compute vendor Omnissa, the company formed by the spin-out of VMware’s virtual desktops, applications, and device management biz, has dug into the telemetry it collects from customers and painted a picture of the world’s enterprise hardware fleet – and the news is better for Google and Apple than it is for Microsoft.…
Hypervisor migrations can introduce hidden risks that threaten data availability and recovery. Acronis explains why verified backups and cross-platform recovery are essential during VMware transitions. [...]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added three security flaws to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation
Exploitation of the command injection flaw in VMware Aria Operations could grant an attacker broad acess to victims' cloud environments.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a recently disclosed security flaw impacting Broadcom VMware Aria Operations to its Known Exploited Vulnerabilities (KEV) catalog, citing active exploitation in the wild
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a VMware Aria Operations vulnerability tracked as CVE-2026-22719 to its Known Exploited Vulnerabilities catalog, flagging the flaw as exploited in attacks. [...]
CISA confirmed on Wednesday that ransomware gangs have begun exploiting a high-severity VMware ESXi sandbox escape vulnerability that was previously used in zero-day attacks. [...]
Also, SmarterMail Flaw, Nike Breach Probe, Empire Market Co-Creator Pleads GuiltyThis week, researchers exposed an Android RAT abusing Hugging Face. Attackers exploited a SmarterMail flaw. Automakers raised cyber spending. CISA flagged a VMware bug. Microsoft patched Office. An Empire Market co-creator pleaded guilty. Nike probed a breach.
CISA has flagged a critical VMware vCenter Server vulnerability as actively exploited and ordered U.S. federal agencies to secure their servers within three weeks. [...]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a critical security flaw affecting Broadcom VMware vCenter Server that was patched in June 2024 to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation in the wild
If you skipped it back then, now’s a very good time You've got to keep your software updated. Some unknown miscreants are exploiting a critical VMware vCenter Server bug more than a year after Broadcom patched the flaw.…
Chinese-speaking threat actors are suspected to have leveraged a compromised SonicWall VPN appliance as an initial access vector to deploy a VMware ESXi exploit that may have been developed as far back as February 2024
Huntress analysis suggests VM escape bugs were already weaponized in the wild Chinese-linked cybercriminals were sitting on a working VMware ESXi hypervisor escape kit more than a year before the bugs it relied on were made public.…
Chinese-speaking threat actors used a compromised SonicWall VPN appliance to deliver a VMware ESXi exploit toolkit that seems to have been developed more than a year before the targeted vulnerabilities became publicly known. [...]
Get your Hyper-V and VMware ESXi setups in order, people Researchers at security software vendor Huntress say they’ve noticed a huge increase in ransomware attacks on hypervisors and urged users to ensure they’re as secure as can be and properly backed up.…
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday released details of a backdoor named BRICKSTORM that has been put to use by state-sponsored threat actors from the People's Republic of China (PRC) to maintain long-term persistence on compromised systems
Chinese-Linked Malware Campaign Targets Critical Environments With Weak MonitoringU.S. and Canadian cyber authorities say Chinese state-backed actors used a backdoor dubbed BRICKSTORM to maintain long-term access into critical infrastructure, exploiting VMware environments to exfiltrate credentials and evade detection through encrypted covert channels.