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Windows Server 2022 — KB5082123 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5082123 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5082123 • MSRC update-guide entry Related CVEs: CVE-2026-32157 CVE-2026-33826 CVE-2026-33827 CVE-2026-33824 CVE-2026-20930 CVE-2026-25250 CVE-2026-23670 CVE-2026-26151  +12 more Affected components: Windows Server 2022 Windows Server 2022, 23H2 Edition (Server Core installation) Windows Server […]

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Debian 13 — dmitry — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — dmitry — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • January 30, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 30 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-7938 CVE-2020-14931 CVE-2024-31837 Upstream summary: Stack-based buffer overflow in DMitry (Deepmagic Information Gathering Tool) version 1.3a (Unix) allows attackers to cause a denial of service (application crash) or […]

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Ubuntu 24.04 — openvpn — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — openvpn — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • January 30, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 30 January 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8286-1 Related CVEs: CVE-2026-35058 CVE-2026-40215 CVE-2025-13086 CVE-2025-2704 CVE-2024-28882 CVE-2024-5594 Upstream summary: Guannan Wang, Zhanpeng Liu, Guancheng Li, and Emma Reuter discovered that OpenVPN incorrectly handled suitably malformed packets with valid […]

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Windows Server 2022 — KB5087544 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5087544 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5087544 • MSRC update-guide entry Related CVEs: CVE-2026-35421 CVE-2026-32161 CVE-2026-40403 CVE-2026-21530 CVE-2026-33834 CVE-2026-33839 CVE-2026-33841 CVE-2026-34329  +12 more Affected components: Windows Server 2022 Microsoft summary: Heap-based buffer overflow in Windows GDI allows an […]

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Ubuntu 20.04 — mysql-8.0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — mysql-8.0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • January 30, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 January 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8006-1 Related CVEs: CVE-2025-53054 CVE-2026-21941 CVE-2026-21936 CVE-2026-21948 CVE-2025-53053 CVE-2025-53069 CVE-2025-53040 CVE-2025-53062  +12 more Upstream summary: Multiple security issues were discovered in MySQL and this update includes a new upstream MySQL […]

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SLES 16 — p11-kit — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — p11-kit — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • January 30, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 January 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2021:599-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-29361 CVE-2020-29363 CVE-2020-29362 Upstream summary: An issue was discovered in p11-kit 0.21.1 through 0.23.21. Multiple integer overflows have been discovered in the array allocations in […]

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SLES 15 — libcairo2 — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libcairo2 — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • January 30, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 30 January 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2017:1671-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-9082 CVE-2017-7475 CVE-2017-9814 CVE-2025-50422 CVE-2019-6461 CVE-2019-6462 Upstream summary: Integer overflow in the write_png function in cairo 1.14.6 allows remote attackers to cause a denial of […]

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NetBSD 9.4 — qt6-qtbase — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — qt6-qtbase — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • January 30, 2026
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2025-5991 CVE-2025-5455 CVE-2025-5992 Upstream summary: pkgsrc audit-packages flagged qt6-qtbase>=6.9.0<6.9.1 for vulnerability class 'use-after-free'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-5991 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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

Oracle Linux 9 — kernel — vulnerability — patch and remediation guide (ELSA-2025-21926)

  • January 30, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 30 January 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-21926 Related CVEs: CVE-2025-39843 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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Windows Server 2016 — KB5075971 — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5075971 — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5075971 • MSRC update-guide entry Related CVEs: CVE-2026-21235 CVE-2026-21236 CVE-2026-21533 CVE-2026-21513 CVE-2026-21510 CVE-2026-21508 CVE-2026-21253 CVE-2026-21239  +5 more Affected components: Windows Server 2016 Microsoft summary: Use after free in Microsoft Graphics Component allows […]

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