Security Hardening

Windows Server 2019 — KB5061010 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5061010 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5061010 • MSRC update-guide entry Related CVEs: CVE-2025-49735 CVE-2025-33071 CVE-2025-33070 CVE-2025-32712 CVE-2025-32713 CVE-2025-32714 CVE-2025-32715 CVE-2025-32716  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Windows […]

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Oracle Linux 9 — cups — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — cups — vulnerability — patch and remediation guide (ELSA-2025-15700)

  • November 2, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 November 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-15700 Related CVEs: CVE-2025-58364 CVE-2025-58060 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Configure UFW Advanced Rules on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure UFW Advanced Rules on Debian 13

  • November 2, 2025
  • Linux
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Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up configure ufw advanced rules on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration […]

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Oracle Linux 9 — redis — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — redis — vulnerability — patch and remediation guide (ELSA-2025-11453)

  • November 2, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 November 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-11453 Related CVEs: CVE-2025-32023 CVE-2025-48367 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Oracle Linux 9 — tar — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — tar — vulnerability — patch and remediation guide (ELSA-2026-0067)

  • November 2, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 2 November 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-0067 Related CVEs: CVE-2025-45582 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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openSUSE Leap 15.6 — liboqs7 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — liboqs7 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • November 2, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:0005-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-37305 CVE-2024-54137 CVE-2024-36405 Upstream summary: oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, […]

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Windows Server 2019 — KB5055596 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5055596 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5055596 • MSRC update-guide entry Related CVEs: CVE-2025-26663 CVE-2025-26686 CVE-2025-26670 CVE-2025-26664 CVE-2025-26665 CVE-2025-26669 CVE-2025-26667 CVE-2025-26668  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Windows […]

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Common Problems 119484

Debian 13 – kernel or grub updates fail because /boot is full

  • November 2, 2025
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 2 November 2025 Affected versions: Debian 13 Debian 13 (Trixie) Debian 13.x 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]

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Oracle Linux 9 — nodejs:22 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — nodejs:22 — vulnerability — patch and remediation guide (ELSA-2025-7433)

  • November 2, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 November 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-7433 Related CVEs: CVE-2025-3277 CVE-2025-31498 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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CentOS Stream 9 — mariadb — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — mariadb — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • November 2, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 November 2025 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:0247 Related CVEs: CVE-2023-52969 CVE-2023-52970 CVE-2023-52971 CVE-2025-13699 CVE-2025-21490 CVE-2025-30693 CVE-2025-30722 CVE-2022-32081  +12 more Upstream summary: MariaDB is a multi-user, multi-threaded SQL database server that is binary compatible with MySQL. Security Fix(es): […]

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