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Articles and practical guidance tagged linux.

A malicious hacker bot breaking out of a virtual machine boundary into a host server

Oct 19, 2026 securitylinux

PwnEscape (CVE-2026-99999): The Linux VM-to-Host Escape Risk

PwnEscape (CVE-2026-99999) is a Linux kernel networking flaw that lets a malicious virtual-machine guest target its host. Researchers confirmed host-memory disclosure in production sandboxes and demonstrated host crashes and host-root execution in controlled environments. Here is what the reports establish and what host operators should do.

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Illustration of Linux Tux under attack amid a zero-day style security incident

Apr 29, 2026 securitylinux

Everything We Know About Copy Fail CVE-2026-31431 So Far

Copy Fail (CVE-2026-31431) is a newly disclosed Linux local privilege escalation bug with a public proof of concept, broad distro impact, and serious consequences for shared servers, CI runners, and container hosts. Here is what is confirmed so far, how to check exposure, and how to remediate.

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