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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 2,283

ID Title
CVE-2026-3470 Vulnerability in sonicwall (CVE-2026-3470)
CVE-2026-3469 Vulnerability in dos (CVE-2026-3469)
CVE-2026-34383 Vulnerability in csrf (CVE-2026-34383)
CVE-2025-14213 Vulnerability in CVE-2025-14213 (CVE-2025-14213)
CVE-2026-21712 Vulnerability in nodejs (CVE-2026-21712)
CVE-2026-33894 Vulnerability in digitalbazaar (CVE-2026-33894)
CVE-2026-33758 Vulnerability in openbao (CVE-2026-33758)
CVE-2025-59032 Vulnerability in dovecot (CVE-2025-59032)
CVE-2026-33218 Vulnerability in nats (CVE-2026-33218)
CVE-2026-4438 Vulnerability in c (CVE-2026-4438)
CVE-2026-4519 Vulnerability in CVE-2026-4519 (CVE-2026-4519)
CVE-2026-4342 Vulnerability in nginx (CVE-2026-4342)
CVE-2026-3644 Vulnerability in CVE-2026-3644 (CVE-2026-3644)
CVE-2025-13462 Vulnerability in CVE-2025-13462 (CVE-2025-13462)
CVE-2026-30901 Vulnerability in zoom (CVE-2026-30901)
CVE-2026-21310 Vulnerability in adobe (CVE-2026-21310)
CVE-2026-21282 Vulnerability in adobe (CVE-2026-21282)
CVE-2026-20020 Vulnerability in dos (CVE-2026-20020)
CVE-2026-2590 Vulnerability in devolutions (CVE-2026-2590)
CVE-2026-2880 Vulnerability in fastify (CVE-2026-2880)
CVE-2026-27959 Vulnerability in koajs (CVE-2026-27959)
CVE-2026-27623 Vulnerability in valkey (CVE-2026-27623)
CVE-2026-24734 Vulnerability in apache (CVE-2026-24734)
CVE-2026-20627 Vulnerability in apple (CVE-2026-20627)
CVE-2026-21229 Improper input validation in Power BI allows an authorized attacker to execute code over a network.
CVE-2025-12131 A truncated 802.15.4 packet can lead to an assert, resulting in a denial of service.
CVE-2024-4027 Vulnerability in dos (CVE-2024-4027)
CVE-2026-0976 Vulnerability in CVE-2026-0976 (CVE-2026-0976)
CVE-2025-65397 Vulnerability in blurams (CVE-2025-65397)
CVE-2026-21271 Vulnerability in adobe (CVE-2026-21271)

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