CATO Networks

FEBRUARY 9, 2023

The ransomware attack that exploits a vulnerability in VMware ESXi hypervisors, has reportedly hit over 500 machines this past weekend. Shodan data indicates that many servers were initially hosted in the OVHcloud, but the blast radius appears to be constantly expanding. Why is CVE-2021-21974 a concern? We have for years.

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CATO Networks

JANUARY 9, 2018

The much publicized critical CPU vulnerabilities published last week by Googles Project Zero and its partners, will have their greatest impact on virtual hosts or those servers where threat actors can gain physical access. Most cloud providers have already patched the underlying hypervisors.

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4sysops

JANUARY 27, 2025

Ransomware gang uses SSH tunnels for stealthy VMware ESXi access Ransomware groups are increasingly targeting VMware ESXi hypervisors by utilizing SSH tunneling to remain hidden while maintaining access.

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4sysops

JANUARY 15, 2025

Microsoft fixes under-attack privilege-escalation holes in Hyper-V Microsoft’s first Patch Tuesday of 2025 includes critical updates addressing three privilege-escalation vulnerabilities in the Hyper-V hypervisor, identified as CVE-2025-21333, CVE-2025-21334, and CVE-2025-21335. They are rated 7.8

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The Network DNA

MAY 27, 2024

VMware clients: Strategic migration to Nutanix & Cisco Software-defined Nutanix needs servers to run its HCI software and AHV hypervisor. Partner Cisco has thousands of UCS servers installed, including blades and rack shelves. Nutanix is partnering with Cisco to certify Cisco's UCS blade servers.

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CATO Networks

JULY 8, 2015

Think of an operating system and a server. This problem was addressed by Virtualization and the Hypervisor. And if the server software failed, the hardware could still run other virtual server instances. In both cases the ability to adapt is constrained.

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Akins IT

MAY 18, 2020

Human error, for example, is the number one cause of service interruption, with server failure, storage failure, and power failure following it. Veeam works by requesting a snapshot from your hypervisor, processing and deduplicating that data, and removing the snapshot from your hypervisor.

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