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Technical articles, tutorials, and insights on networking, IoT, system administration, and infrastructure

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2 articles found

CybersecurityLinuxKernelVulnerability

CVE-2026-43499: Linux Kernel rtmutex Flaw Enables Local Privilege Escalation — Patch Now

CVE-2026-43499 is a CVSS 7.8 high-severity flaw in the Linux kernel's real-time mutex (rtmutex) implementation. Learn how the remove_waiter() bug works, which Ubuntu releases are affected, and how to patch your kernel.

July 22, 20265 min read
CybersecurityLinuxSystem AdministrationSecurity

Linux Server Hardening Checklist 2026: A Complete Security Guide

A practical, step-by-step Linux server hardening guide covering SSH lockdown, firewall rules, kernel tuning, audit logging, automatic patching, and CIS benchmark alignment for Ubuntu and RHEL.

February 26, 20267 min read