chris

Windows Server 2019 — KB5061059 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5061059 — 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 KB5061059 • 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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Debian 13 — rootlesskit — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rootlesskit — vulnerability — patch and remediation guide

  • June 30, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 30 June 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-20199 Upstream summary: Rootless containers run with Podman, receive all traffic with a source IP address of 127.0.0.1 (including from remote hosts). This impacts containerized applications that trust localhost […]

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Debian 12 — duc — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — duc — vulnerability — patch and remediation guide

  • June 30, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 30 June 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-13654 Upstream summary: A stack buffer overflow vulnerability exists in the buffer_get function of duc, a disk management tool, where a condition can evaluate to true due to […]

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Debian 13 — node-xmldom — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-xmldom — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • June 30, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 30 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-21366 CVE-2021-32796 CVE-2022-37616 CVE-2022-39353 CVE-2026-34601 CVE-2026-41672 CVE-2026-41673 CVE-2026-41674  +1 more Upstream summary: xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. […]

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Common Problems 115925

Ubuntu 26.04 LTS – Netplan apply fails from invalid YAML syntax – Fix & Prevention

  • June 30, 2026
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 30 June 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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 & Hardening Related Errors […]

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Windows Server 2019 — KB5070882 — security update — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5070882 — security update — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5070882 • MSRC update-guide entry Related CVEs: CVE-2025-59287 Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to […]

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Ubuntu 24.04 — libxml2 — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — libxml2 — multiple vulnerabilities (17 CVEs) — patch and remediation guide

  • June 30, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 June 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7974-1 Related CVEs: CVE-2026-0992 CVE-2026-0990 CVE-2025-8732 CVE-2026-0989 CVE-2025-7425 CVE-2025-9714 CVE-2025-6021 CVE-2025-49794  +9 more Upstream summary: It was discovered that libxml2 incorrectly handled maliciously crafted SGML catalog files. An attacker could […]

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Ubuntu 22.04 — git-lfs — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — git-lfs — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • June 30, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 30 June 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7977-1 Related CVEs: CVE-2024-53263 CVE-2025-26625 Upstream summary: Ryota K discovered that Git LFS may leak login credentials in certain instances due to failing to check for URL-encoded characters. An attacker […]

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Ubuntu 22.04 — glibc — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — glibc — multiple vulnerabilities (17 CVEs) — patch and remediation guide

  • June 30, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 June 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8005-1 Related CVEs: CVE-2026-0915 CVE-2025-8058 CVE-2025-15281 CVE-2026-0861 CVE-2025-4802 CVE-2025-0395 CVE-2024-33599 CVE-2024-33600  +9 more Upstream summary: Vitaly Simonovich discovered that the GNU C Library did not properly initialize the input when […]

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Windows Server 2019 — KB5073723 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5073723 — 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 KB5073723 • MSRC update-guide entry Related CVEs: CVE-2026-20822 CVE-2026-20962 CVE-2026-21265 CVE-2026-0386 CVE-2026-20804 CVE-2026-20805 CVE-2026-20809 CVE-2026-20810  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Microsoft […]

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