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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-2026-69192 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-2026-21555 In modem, there is a possible improper input validation. This could lead to remote denial of...
CVE-2026-21554 In modem, there is a possible improper input validation. This could lead to remote denial of...
CVE-2026-21552 In modem, there is a possible improper input validation. This could lead to remote denial of...
CVE-2026-21550 In modem, there is a possible improper input validation. This could lead to remote denial of...
CVE-2026-21553 In modem, there is a possible improper input validation. This could lead to remote denial of...
CVE-2026-21551 In modem, there is a possible improper input validation. This could lead to remote denial of...
CVE-2026-21548 In nr modem, there is a possible improper input validation. This could lead to remote denial of...
CVE-2026-21549 In modem, there is a possible improper input validation. This could lead to remote denial of...
CVE-2026-59650 Vulnerability in Bouncy Castle for Java (CVE-2026-59650)
CVE-2025-71399 Vulnerability in better-auth (CVE-2025-71399)
CVE-2026-67330 Vulnerability in @better-auth/scim (CVE-2026-67330)
CVE-2026-67326 Vulnerability in GitPython (CVE-2026-67326)
CVE-2026-67296 Vulnerability in FreeRDP (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 HCL iControl was affected by Improper Input Validation vulnerability. It is vulnerable to...
CVE-2026-18217 Vulnerability in Keycloak (CVE-2026-18217)
CVE-2026-18206 Vulnerability in Keycloak (CVE-2026-18206)
CVE-2026-18211 Vulnerability in Build Of Keycloak (CVE-2026-18211)
CVE-2026-65834 Vulnerability in github.com/projectcapsule/capsule (CVE-2026-65834)
CVE-2026-59881 Vulnerability in aiohttp (CVE-2026-59881)
CVE-2026-18014 Vulnerability in Google Chrome (CVE-2026-18014)
CVE-2026-18009 Vulnerability in Google Chrome (CVE-2026-18009)
CVE-2026-18002 Vulnerability in Google Chrome (CVE-2026-18002)
CVE-2026-17988 Vulnerability in Google Chrome (CVE-2026-17988)
CVE-2026-17990 Vulnerability in Google Chrome (CVE-2026-17990)

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