Security Hardening

Windows Server 2019 — KB5040438 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5040438 — 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 KB5040438 • MSRC update-guide entry Related CVEs: CVE-2024-38060 CVE-2024-38077 CVE-2024-38074 CVE-2024-38076 CVE-2024-38184 CVE-2024-38191 CVE-2024-38185 CVE-2024-38186  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft .NET Framework 3.5 AND 4.8 on […]

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NetBSD 9.4 — speex — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — speex — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 24, 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-2008-1686 CVE-2020-23903 Upstream summary: pkgsrc audit-packages flagged speex<1.0.5nb1 for vulnerability class 'remote-code-execution'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1686 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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Alpine Linux 3.19 — py3-lxml — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — py3-lxml — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • May 24, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 4.9.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — py3-lxml 4.9.2-r0 Related CVEs: CVE-2022-2309 CVE-2021-43818 CVE-2021-28957 CVE-2020-27783 Upstream summary: Alpine main repository for vv3.19 ships py3-lxml 4.9.2-r0 which addresses CVE-2022-2309. Table of contents Symptom […]

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openSUSE Tumbleweed — libodbc2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libodbc2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 24, 2026
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2018:1845-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-7409 CVE-2018-7485 Upstream summary: In unixODBC before 2.3.5, there is a buffer overflow in the unicode_to_ansi_copy() function in DriverManager/__info.c. Table of contents Symptom & Impact […]

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AlmaLinux 8 — autoconf — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — autoconf — vulnerability — patch and remediation guide

  • May 24, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4280 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Amazon Linux 2023 — libnvfatbin-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — libnvfatbin-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 24, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023NVIDIA-2025-199 Related CVEs: CVE-2025-23272 CVE-2025-23247 Upstream summary: NVIDIA nvJPEG library contains a vulnerability where an attacker can cause an out-of-bounds read by means of a specially crafted JPEG file. A […]

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Windows Server 2019 — KB5040442 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5040442 — 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 KB5040442 • MSRC update-guide entry Related CVEs: CVE-2024-38060 CVE-2024-38161 CVE-2024-38184 CVE-2024-38191 CVE-2024-38185 CVE-2024-38186 CVE-2024-38187 CVE-2024-21417  +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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NetBSD 9.4 — splitvt — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — splitvt — vulnerability — patch and remediation guide

  • May 24, 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-2008-0162 Upstream summary: pkgsrc audit-packages flagged splitvt<1.6.6 for vulnerability class 'privilege-escalation'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0162 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Alpine Linux 3.19 — py3-mako — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — py3-mako — vulnerability — patch and remediation guide

  • May 24, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 1.2.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — py3-mako 1.2.2-r0 Related CVEs: CVE-2022-40023 Upstream summary: Alpine main repository for vv3.19 ships py3-mako 1.2.2-r0 which addresses CVE-2022-40023. Table of contents Symptom & Impact Environment […]

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openSUSE Tumbleweed — libpcre1 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libpcre1 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • May 24, 2026
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2019:695-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-1283 CVE-2017-6004 CVE-2014-8964 CVE-2015-3217 CVE-2017-7186 CVE-2017-7245 CVE-2016-3191 Upstream summary: The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the /((?:F?+(?:^(?(R)a+"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'){97)?J)?J)(?'R'(?'R'){99|(:(?|(?'R')(k'R')|((?'R')))H'R'R)(H'R))))))/ pattern and related patterns with […]

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