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Cwe 20

🧬 CWE Related 125
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 78120 Cwe 787105 Cwe 41699 Cwe 2296 Cwe 11990 Cwe 9484 Cwe 50270 Cwe 7966 Cwe 8954 Cwe 91844 Cwe 28443 Cwe 28741 Cwe 7740 Cwe 30638 Cwe 84337

🛡 Vulnerabilities tagged with this 1,695

ID Title
CVE-2026-26062 Vulnerability in github.com/fleetdm/fleet/v4 (CVE-2026-26062)
CVE-2026-44425 Vulnerability in github.com/shellhub-io/shellhub (CVE-2026-44425)
CVE-2026-45055 Vulnerability in CVE-2026-45055 (CVE-2026-45055)
CVE-2026-44379 Vulnerability in misp (CVE-2026-44379)
CVE-2026-42579 Vulnerability in io.netty:netty-codec-dns (CVE-2026-42579)
CVE-2026-0238 Vulnerability in CVE-2026-0238 (CVE-2026-0238)
CVE-2026-2695 Vulnerability in CVE-2026-2695 (CVE-2026-2695)
CVE-2026-45137 Vulnerability in anchor-lang (CVE-2026-45137)
CVE-2026-8369 Vulnerability in CVE-2026-8369 (CVE-2026-8369)
CVE-2026-42544 Vulnerability in granian (CVE-2026-42544)
CVE-2026-34679 Vulnerability in adobe (CVE-2026-34679)
CVE-2026-34685 Vulnerability in adobe (CVE-2026-34685)
CVE-2026-34688 Vulnerability in adobe (CVE-2026-34688)
CVE-2026-34666 Vulnerability in adobe (CVE-2026-34666)
CVE-2026-34668 Vulnerability in adobe (CVE-2026-34668)
CVE-2026-34669 Vulnerability in adobe (CVE-2026-34669)
CVE-2026-34670 Vulnerability in adobe (CVE-2026-34670)
CVE-2026-23825 Vulnerability in arubanetworks (CVE-2026-23825)
CVE-2026-20767 Vulnerability in intel (CVE-2026-20767)
CVE-2026-44343 Vulnerability in wgdashboard (CVE-2026-44343)
CVE-2026-44204 Vulnerability in sqli (CVE-2026-44204)
CVE-2026-35433 Vulnerability in Microsoft.WindowsDesktop.App.Runtime.win-arm64 (CVE-2026-35433)
CVE-2026-32177 Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.
CVE-2026-43989 Vulnerability in CVE-2026-43989 (CVE-2026-43989)
CVE-2026-20905 Vulnerability in dos (CVE-2026-20905)
CVE-2026-20717 Vulnerability in dos (CVE-2026-20717)
CVE-2025-35990 Vulnerability in CVE-2025-35990 (CVE-2025-35990)
CVE-2026-41293 Vulnerability in tomcat (CVE-2026-41293)
CVE-2026-44294 Vulnerability in protobufjs (CVE-2026-44294)
CVE-2026-8391 Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3.

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