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Cwe 20

🧬 CWE Related 2,857
slug: cwe-20

Explanation

CWE-20は「ユーザーから受け取ったデータが、想定された形式・範囲・型かをきちんとチェックせずに使ってしまう欠陥」のことです。 非常に広い概念で、SQLi・XSS・コマンドインジェクションなど多くの攻撃の前段階となります。 「入力は信用するな (Trust Boundaries の概念)」がセキュリティ設計の基本原則です。
📌 Example
多くのCISA KEV登録CVEがこのCWEに分類されており、2024年だけで100件以上の悪用事例があります。
🔗 Related links

🔖 Related tags

Cwe 798692 Cwe 894154 Cwe 8624040 Cwe 2844030 Cwe 4163898 Cwe 1193185 Cwe 2003145 Cwe 1253116 Cwe 222773 Cwe 7872520 Cwe 782028 Cwe 941871 Cwe 8631869 Cwe 1221801 Cwe 741796

🛡 Vulnerabilities tagged with this 2,859

Image ID Title
CVE-2026-21733 Vulnerability in Google Imaginationtech (CVE-2026-21733)
CVE-2026-34197 KEV [KEV] Vulnerability in Apache activemq (CVE-2026-34197)
CVE-2026-40261 Vulnerability in composer/composer (CVE-2026-40261)
CVE-2026-40176 Vulnerability in composer/composer (CVE-2026-40176)
CVE-2026-6328 Vulnerability in XQUIC (CVE-2026-6328)
CVE-2026-39399 NuGet Gallery is a package repository that powers nuget.org. A security vulnerability exists in the NuGetGallery…
CVE-2026-35031 Vulnerability in Jellyfin (CVE-2026-35031)
CVE-2026-27299 Vulnerability in Adobe Windows (CVE-2026-27299)
CVE-2026-27282 Vulnerability in Adobe Coldfusion (CVE-2026-27282)
CVE-2026-27304 Vulnerability in Adobe Coldfusion (CVE-2026-27304)
CVE-2026-27306 Vulnerability in Adobe Coldfusion (CVE-2026-27306)
CVE-2026-24893 Vulnerability in It Novum (CVE-2026-24893)
CVE-2026-33826 Vulnerability in Windows Active Directory (CVE-2026-33826)
CVE-2026-33116 Vulnerability in dotnet-sdk (CVE-2026-33116)
CVE-2026-32203 Vulnerability in System.Security.Cryptography.Xml (CVE-2026-32203)
CVE-2026-32149 Vulnerability in Windows Hyper-V (CVE-2026-32149)
CVE-2026-27906 Vulnerability in Windows Hello (CVE-2026-27906)
CVE-2026-26170 Vulnerability in Microsoft PowerShell (CVE-2026-26170)
CVE-2026-26161 Vulnerability in Windows Sensor Data Service (CVE-2026-26161)
CVE-2026-26156 Vulnerability in Windows Hyper-V (CVE-2026-26156)
CVE-2026-33948 Vulnerability in Jqlang (CVE-2026-33948)
CVE-2026-32201 KEV [KEV] Vulnerability in Microsoft sharepoint-server (CVE-2026-32201)
CVE-2012-1854 KEV [KEV] Vulnerability in Microsoft visual-basic-for-applications-vba (CVE-2012-1854)
CVE-2026-5919 Vulnerability in Google Chrome (CVE-2026-5919)
CVE-2026-5915 Vulnerability in Google Chrome (CVE-2026-5915)
CVE-2026-5885 Vulnerability in Google Chrome (CVE-2026-5885)
CVE-2026-5884 Vulnerability in Google Chrome (CVE-2026-5884)
CVE-2026-5887 Vulnerability in Google Chrome (CVE-2026-5887)
CVE-2026-5879 Vulnerability in Google Chrome (CVE-2026-5879)
CVE-2026-39410 Vulnerability in Hono (CVE-2026-39410)

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