#Virtualization
All CosmicBytez Labs articles tagged #Virtualization, across news, security advisories, how-to guides, and projects.
- News
Critical PwnEscape Linux Kernel Vulnerability Lets Guest VMs Read Host Memory
CVE-2026-99999 (CVSS 9.3) lets a guest VM leak host memory via a kernel checksum bug; found via Vercel's $1M bounty, now patched upstream.
- Security
CVE-2026-25199: Apache CloudStack Proxmox Extension Allows
A critical tenant isolation vulnerability in Apache CloudStack's Proxmox extension (CVSS 9.1) allows one tenant to access and control VM instances...
- News
NAKIVO v11.2: Ransomware Defense, Faster Replication
NAKIVO Backup & Replication v11.2 is generally available, bringing immutable backup enhancements for ransomware defense, faster replication performance,...
- News
Payouts King Ransomware Uses QEMU Virtual Machines to Bypass Endpoint Security
The Payouts King ransomware group is deploying the QEMU open-source emulator as a covert reverse SSH backdoor, spinning up hidden virtual machines on...
- Security
CISA Adds Actively Exploited VMware Aria Operations RCE
CISA has added CVE-2026-22719, a high-severity command injection vulnerability in VMware Aria Operations allowing unauthenticated remote code execution,...
- Security
China-Linked Hackers Exploit VMware ESXi Zero-Days to Escape VMs
Sophisticated attack chain leverages compromised SonicWall VPN and VMware ESXi vulnerabilities to break out of virtual machine isolation and compromise...