Security Hardening

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

Oracle Linux 9 — vim — vulnerability — patch and remediation guide (ELSA-2026-5602)

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-5602 Related CVEs: CVE-2026-25749 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 — KB5061026 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5061026 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5061026 • MSRC update-guide entry Related CVEs: CVE-2025-32712 CVE-2025-32713 CVE-2025-32714 CVE-2025-32716 CVE-2025-32724 CVE-2025-33064 CVE-2025-33066 CVE-2025-33075  +4 more Affected components: Windows Server 2016 Microsoft summary: Use after free in Windows Win32K – GRFX […]

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Oracle Linux 8 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — vulnerability — patch and remediation guide (ELSA-2025-11850)

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-11850 Related CVEs: CVE-2025-21905 CVE-2022-49977 CVE-2025-21919 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 10 — squid — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — squid — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:8119 Related CVEs: CVE-2026-32748 CVE-2026-33526 CVE-2025-62168 Upstream summary: Squid is a high-performance proxy caching server for web clients, supporting FTP, and HTTP data objects. Security Fix(es): * squid: Squid: Denial of […]

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openSUSE Leap 15.6 — roundcubemail — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — roundcubemail — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2024:0328-1 Related CVEs: CVE-2024-42008 CVE-2024-42009 CVE-2026-35537 CVE-2025-68460 CVE-2025-68461 CVE-2026-25916 CVE-2026-26079 CVE-2024-42010 Upstream summary: A Cross-Site Scripting vulnerability in rcmail_action_mail_get->run() in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker […]

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CentOS Stream 10 — ruby — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — ruby — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:18065 Related CVEs: CVE-2026-41316 CVE-2025-24294 CVE-2025-58767 CVE-2025-61594 CVE-2025-25186 CVE-2025-27219 CVE-2025-27221 Upstream summary: Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system […]

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SLES 12 — perl-YAML-LibYAML — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — perl-YAML-LibYAML — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory RHSA-2025:9329 (see also SUSE bugzilla) Related CVEs: CVE-2025-40908 CVE-2012-1152 Upstream summary: YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified Table of contents Symptom & Impact […]

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SLES 12 — python3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — python3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:10711 (see also SUSE bugzilla) Related CVEs: CVE-2026-4786 CVE-2026-6100 CVE-2025-11468 CVE-2025-4138 CVE-2025-4330 CVE-2025-4435 CVE-2025-4517 CVE-2024-6232  +12 more Upstream summary: Mitgation of CVE-2026-4519 was incomplete. If the URL contained "%action" the mitigation could […]

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openSUSE Leap 15.6 — libcfg6 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — libcfg6 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14933-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-30472 CVE-2026-35091 CVE-2026-35092 Upstream summary: Corosync through 3.1.9, if encryption is disabled or the attacker knows the encryption key, has a stack-based buffer overflow […]

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SLES 15 — libXvnc1 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libXvnc1 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 10 June 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2014-0011 CVE-2020-26117 CVE-2026-34352 CVE-2014-8240 CVE-2019-15691 CVE-2019-15692 CVE-2019-15693 CVE-2019-15694  +2 more Upstream summary: Multiple heap-based buffer overflows in the ZRLE_DECODE function in common/rfb/zrleDecode.h in TigerVNC before […]

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CHAT