Common Problems

Windows Server 2022 — KB5026366 — security update — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5026366 — security update — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5026366 • MSRC update-guide entry Related CVEs: CVE-2023-29324 Affected components: Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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NetBSD 9.4 — ruby-redmine41 — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ruby-redmine41 — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2021-29274 CVE-2021-30164 CVE-2021-30163 CVE-2020-36307 CVE-2020-36306 CVE-2021-31863 CVE-2021-31864 CVE-2021-31865  +3 more Upstream summary: pkgsrc audit-packages flagged ruby{25,26,27,30}-redmine41<4.1.2 for vulnerability class 'cross-site-scripting'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-29274 Table of contents Symptom & Impact Environment […]

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Debian 12 — cups-pk-helper — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — cups-pk-helper — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-4510 Upstream summary: cups-pk-helper before 0.2.3 does not properly wrap the (1) cupsGetFile and (2) cupsPutFile function calls, which allows user-assisted remote attackers to read or overwrite sensitive […]

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Debian 12 — mailman3 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — mailman3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-34337 Upstream summary: An issue was discovered in Mailman Core before 3.3.5. An attacker with access to the REST API could use timing attacks to determine the value […]

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NetBSD 9.4 — horde-3.0.[0-3]* — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — horde — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged horde for vulnerability class 'cross-site-scripting'. Reference: http://secunia.com/advisories/14730/ Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Debian 12 — node-kind-of — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — node-kind-of — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-20149 Upstream summary: ctorName in index.js in kind-of v6.0.2 allows external user input to overwrite certain internal attributes via a conflicting name, as demonstrated by 'constructor': {'name':'Symbol'}. Hence, […]

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Debian 12 — calife — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — calife — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0188 Upstream summary: Heap-based buffer overflow in Calife 2.8.5 and earlier may allow local users to execute arbitrary code via a long password. Table of contents Symptom & […]

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Windows Server 2019 — KB5022348 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5022348 — 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 KB5022348 • MSRC update-guide entry Related CVEs: CVE-2023-21535 CVE-2023-21546 CVE-2023-21543 CVE-2023-21548 CVE-2023-21555 CVE-2023-21556 CVE-2023-21561 CVE-2023-21679  +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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Debian 12 — bcel — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — bcel — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-34169 CVE-2022-42920 Upstream summary: The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt […]

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Debian 12 — runc — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — runc — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-3697 CVE-2016-9962 CVE-2019-16884 CVE-2019-19921 CVE-2019-5736 CVE-2021-30465 CVE-2021-43784 CVE-2022-29162  +8 more Upstream summary: libcontainer/user/user.go in runC before 0.1.0, as used in Docker before 1.11.2, improperly treats a numeric UID […]

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