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Windows Server 2019 — KB5066836 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5066836 — 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 KB5066836 • MSRC update-guide entry Related CVEs: CVE-2016-9535 CVE-2025-64679 CVE-2025-64680 CVE-2025-62208 CVE-2025-62209 CVE-2025-24990 CVE-2025-24052 CVE-2025-55325  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft .NET Framework 3.5 AND 4.7.2 on […]

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Ubuntu 18.04 — python-cryptography — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — python-cryptography — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • June 3, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 June 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8087-3 Related CVEs: CVE-2026-26007 CVE-2023-50782 CVE-2024-26130 CVE-2020-25659 CVE-2018-10903 Upstream summary: USN-8087-1 fixed a vulnerability in python-cryptography. This update provides the corresponding update to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and […]

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openSUSE Leap 15.6 — ongres-scram — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — ongres-scram — vulnerability — patch and remediation guide

  • June 3, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:21016-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-59432 Upstream summary: SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication […]

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Ubuntu 22.04 — mupdf — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — mupdf — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • June 3, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 June 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7888-1 Related CVEs: CVE-2023-51106 CVE-2023-51103 CVE-2024-46657 CVE-2025-46206 CVE-2023-51104 CVE-2023-51105 Upstream summary: It was discovered that MuPDF could be made to divide by zero. An attacker could possibly use this issue […]

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SLES 16 — libtirpc3 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — libtirpc3 — vulnerability — patch and remediation guide

  • June 3, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 June 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:2025-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-46828 Upstream summary: In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are […]

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SLES 16 — python3-gi-docgen — vulnerability — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — python3-gi-docgen — vulnerability — patch and remediation guide

  • June 3, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 June 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:21159-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-11687 Upstream summary: A flaw was found in the gi-docgen. This vulnerability allows arbitrary JavaScript execution in the context of the page – enabling DOM […]

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Oracle Linux 10 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2025-20551)

  • June 3, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 June 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-20551 Related CVEs: CVE-2024-36350 CVE-2024-36357 CVE-2024-49929 CVE-2024-57976 CVE-2024-58091 CVE-2025-21879 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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

Oracle Linux 9 — ruby — vulnerability — patch and remediation guide (ELSA-2026-18039)

  • June 3, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 June 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-18039 Related CVEs: CVE-2026-41316 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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Oracle Linux 8 — virt:kvm_utils3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:kvm_utils3 — vulnerability — patch and remediation guide (ELSA-2026-50118)

  • June 3, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 June 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50118 Related CVEs: CVE-2024-8354 CVE-2025-11234 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 — dtrace — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — dtrace — vulnerability — patch and remediation guide (ELSA-2026-50152)

  • June 3, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 June 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50152 Related CVEs: CVE-2026-21991 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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