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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 2,280

ID Title
CVE-2026-18801 Vulnerability in sqli (CVE-2026-18801)
CVE-2026-18772 Vulnerability in CVE-2026-18772 (CVE-2026-18772)
CVE-2026-11835 Vulnerability in CVE-2026-11835 (CVE-2026-11835)
CVE-2026-67978 Vulnerability in dos (CVE-2026-67978)
CVE-2026-67974 Vulnerability in dos (CVE-2026-67974)
CVE-2026-67969 Vulnerability in CVE-2026-67969 (CVE-2026-67969)
CVE-2026-69192 Vulnerability in ip-address (CVE-2026-69192)
CVE-2026-69198 Vulnerability in ip-address (CVE-2026-69198)
CVE-2026-69185 Vulnerability in socket.io-parser (CVE-2026-69185)
CVE-2026-21554 Vulnerability in dos (CVE-2026-21554)
CVE-2026-21550 Vulnerability in dos (CVE-2026-21550)
CVE-2026-21553 Vulnerability in dos (CVE-2026-21553)
CVE-2026-21551 Vulnerability in dos (CVE-2026-21551)
CVE-2026-21552 Vulnerability in dos (CVE-2026-21552)
CVE-2026-21555 Vulnerability in dos (CVE-2026-21555)
CVE-2026-21549 Vulnerability in dos (CVE-2026-21549)
CVE-2026-21548 Vulnerability in dos (CVE-2026-21548)
CVE-2026-59650 Vulnerability in CVE-2026-59650 (CVE-2026-59650)
CVE-2025-71399 Vulnerability in CVE-2025-71399 (CVE-2025-71399)
CVE-2026-67330 Vulnerability in CVE-2026-67330 (CVE-2026-67330)
CVE-2026-67326 Vulnerability in CVE-2026-67326 (CVE-2026-67326)
CVE-2026-67296 Vulnerability in dos (CVE-2026-67296)
CVE-2026-54909 Vulnerability in github.com/pion/stun/v3 (CVE-2026-54909)
CVE-2026-53551 Vulnerability in github.com/free5gc/free5gc (CVE-2026-53551)
CVE-2026-53503 Vulnerability in thumbor (CVE-2026-53503)
CVE-2025-62347 Vulnerability in CVE-2025-62347 (CVE-2025-62347)
CVE-2026-18217 Vulnerability in redhat (CVE-2026-18217)
CVE-2026-18206 Vulnerability in redhat (CVE-2026-18206)
CVE-2026-18211 Vulnerability in redhat (CVE-2026-18211)
CVE-2026-65834 Vulnerability in github.com/projectcapsule/capsule (CVE-2026-65834)

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