February 2026 - Page 48 of 176

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

Debian 13 — rpki-client — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 February 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3909 CVE-2021-43172 CVE-2021-43173 Upstream summary: OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever. […]

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Debian 12 — qt6-connectivity — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — qt6-connectivity — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 February 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-23050 Upstream summary: QLowEnergyController in Qt before 6.8.2 mishandles malformed Bluetooth ATT commands, leading to an out-of-bounds read (or division by zero). This is fixed in 5.15.19, 6.5.9, […]

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Ubuntu 20.04 — python3.8 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — python3.8 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 21 February 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8018-2 Related CVEs: CVE-2025-15367 CVE-2025-15366 CVE-2026-0865 https://bugs.launchpad.net/bugs/2143706 CVE-2025-15282 CVE-2026-0672 CVE-2025-13837 CVE-2025-11468  +12 more Upstream summary: USN-8018-1 fixed vulnerabilities in python3. That update introduced regressions. The patches for CVE-2025-15366 and CVE-2025-15367 […]

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Red Hat Enterprise Linux 9 — thunderbird — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 9

Red Hat Enterprise Linux 9 — thunderbird — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 9 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:19462 Related CVEs: CVE-2026-6746 CVE-2026-6747 CVE-2026-6748 CVE-2026-6749 CVE-2026-6750 CVE-2026-6751 CVE-2026-6752 CVE-2026-6753  +12 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Ubuntu 16.04 — linux-hwe — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — linux-hwe — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 21 February 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8266-1 Related CVEs: CVE-2024-27388 CVE-2024-46816 CVE-2024-49938 CVE-2024-50008 CVE-2024-50142 CVE-2026-23209 CVE-2026-23268 CVE-2026-23269  +12 more Upstream summary: Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module (LSM). An […]

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Oracle Linux 9 — python3.11-setuptools — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — python3.11-setuptools — vulnerability — patch and remediation guide (ELSA-2025-13578)

🟡 Medium   ⏱ 10–30 min  Last verified: 21 February 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-13578 Related CVEs: CVE-2025-47273 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 — thunderbird — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2025-8756)

🟠 High   ⏱ 15–60 min  Last verified: 21 February 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-8756 Related CVEs: CVE-2025-5269 CVE-2025-5266 CVE-2025-5263 CVE-2025-3875 CVE-2025-3909 CVE-2025-5267 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Fedora 42 — pgbouncer — vulnerability — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — pgbouncer — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-cf2ba5b766 Related CVEs: CVE-2025-12819 Upstream summary: Update to 1.25.2. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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CentOS Stream 9 — libpng — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — libpng — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 21 February 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:3405 Related CVEs: CVE-2026-22695 CVE-2026-22801 CVE-2026-25646 CVE-2025-64720 CVE-2025-65018 CVE-2025-66293 CVE-2026-33416 CVE-2026-33636 Upstream summary: The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics (PNG) image format […]

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CentOS Stream 9 — image-builder — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — image-builder — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 21 February 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:13671 Related CVEs: CVE-2026-25679 CVE-2025-61726 CVE-2025-61729 CVE-2025-68121 CVE-2025-58183 Upstream summary: A local binary for building customized OS artifacts such as VM images and OSTree commits. Uses osbuild under the hood. Security […]

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