February 2026 - Page 97 of 176

FreeBSD 15 — mozilla-firebird — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — mozilla-firebird — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • February 13, 2026
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 13 February 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: firefox & mozilla — multiple vulnerabilities Related CVEs: CVE-2004-0762 CVE-2004-0765 CVE-2004-0904 CVE-2004-0905 CVE-2004-0908 CVE-2004-0909 CVE-2004-1156 CVE-2004-1157  +12 more Upstream summary: A Mozilla Foundation Security Advisory reports of multiple issues: Heap […]

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Amazon Linux 2 — net-snmp — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — net-snmp — multiple vulnerabilities (10 CVEs) — patch and remediation guide

  • February 13, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2026-3124 Related CVEs: CVE-2025-68615 CVE-2020-15862 CVE-2022-44793 CVE-2022-24805 CVE-2022-24806 CVE-2022-24807 CVE-2022-24808 CVE-2022-24809  +2 more Upstream summary: net-snmp is a SNMP application library, tools and daemon. Prior to versions 5.9.5 and 5.10.pre2, […]

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Ubuntu 18.04 — linux-gcp-5.4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-gcp-5.4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • February 13, 2026
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 13 February 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8273-1 Related CVEs: CVE-2024-50304 CVE-2026-23112 CVE-2026-23209 CVE-2026-31431 CVE-2026-31504 CVE-2026-31533 CVE-2026-43033 CVE-2026-43077  +12 more Upstream summary: Several security issues were discovered in the Linux kernel. An attacker could possibly use these […]

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Master Install Node.js on macOS – Homebrew, NVM & First Project 2025–2026

Master Install Node.js on macOS – Homebrew, NVM & First Project 2025–2026

Learning how to install Node.js on macOS is one of the most essential and frequently performed tasks for any JavaScript developer, full-stack engineer, web designer, or aspiring coder in 2025–2026 — Node.js powers modern web development (React, Next.js, Vue, Express, NestJS), serverless functions, desktop apps (Electron), mobile backends, automation scripts, CLI tools, and almost every serious JavaScript ecosystem project. Installing Node.js correctly on macOS gives you access to npm (the world’s largest package registry), Yarn, pnpm, and hundreds of thousands of libraries instantly.

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Lambdas in Java – Lambda Expressions, Functional Interfaces & Examples 2025–2026

Lambdas in Java – Lambda Expressions, Functional Interfaces & Examples 2025–2026

Mastering lambdas in Java is one of the most powerful and frequently used skills in modern Java development — lambdas (introduced in Java 8) allow you to write concise, expressive, functional-style code that replaces verbose anonymous classes, making streams, collections processing, event handling, multithreading, and APIs like forEach, map, filter, and sort much cleaner and more readable. In 2025–2026, lambdas are everywhere in real-world Java: Spring Boot, Android, reactive programming (Project Reactor), parallel streams, and almost every modern Java library.

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Maps in Java – HashMap Tutorial, Methods & Examples 2025–2026

Maps in Java – HashMap Tutorial, Methods & Examples 2025–2026

Mastering maps in Java is one of the most essential and frequently used skills in any Java tutorial for beginners — maps let you store key-value pairs (like a dictionary), where each unique key maps to exactly one value. This makes maps in Java perfect for real-world tasks: user sessions, configuration settings, caching, lookups, grouping data, counting frequencies, and building fast search structures. In 2025–2026, maps remain a core part of every Java developer’s toolkit — used everywhere from Android apps to Spring Boot backends and big data processing.

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Lists in Java – ArrayList Tutorial, Methods & Examples 2025–2026

Lists in Java – ArrayList Tutorial, Methods & Examples 2025–2026

Mastering lists in Java is one of the most essential and frequently used skills in any Java tutorial for beginners — lists let you store and manage dynamic collections of objects (strings, numbers, custom classes) with easy resizing, insertion, removal, searching, and sorting. Unlike fixed-size arrays, lists in Java grow or shrink automatically — making them perfect for real-world tasks like user lists, shopping carts, task managers, game inventories, database results, and more.

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Common Problems 113893

DNF metadata download timeout on RHEL 10

🟡 Medium   ⏱ 5–30 min  Last verified: 12 February 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~1 min read Table of contents Problem Summary Symptoms Diagnostics Root Cause Primary Fix Verification Prevention Rollback Automation Command Reference Escalation Related Notes Problem Summary dnf update fails while refreshing repository metadata. Symptoms Errors include Curl error […]

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Loops in Java – while, do-while, for & foreach Tutorial 2025–2026

Loops in Java – while, do-while, for & foreach Tutorial 2025–2026

Mastering loops in Java is one of the most essential and frequently used skills in any Java tutorial for beginners — loops let you repeat code blocks efficiently, avoiding duplication and making programs scalable, readable, and maintainable. Whether you’re printing a list, processing arrays, validating user input, animating graphics, reading files, or running game loops, loops in Java are the foundation of almost every real-world application in 2025–2026.

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