CISA Known Exploited Vulnerabilities (KEV) Catalog
CISA Known Exploited Vulnerabilities (KEV) Catalog とは何ですか?
CISA Known Exploited Vulnerabilities (KEV) CatalogA U.S. CISA-maintained list of CVEs with credible evidence of in-the-wild exploitation, paired with mandatory remediation deadlines for U.S. federal civilian agencies and widely used by enterprises as a priority signal.
The CISA Known Exploited Vulnerabilities (KEV) Catalog is a list maintained by the U.S. Cybersecurity and Infrastructure Security Agency of vulnerabilities for which CISA has credible evidence of active in-the-wild exploitation. KEV launched in November 2021 under Binding Operational Directive 22-01, which makes remediation of listed CVEs mandatory for U.S. Federal Civilian Executive Branch (FCEB) agencies within a stated deadline (typically two to three weeks). Each entry includes the CVE, product, short description, required action, due date, and the date added. By 2025 the catalog held over 1,300 CVEs across operating systems, network appliances, VPNs, RMM, productivity software, and ICS. Despite its formal scope being U.S. federal, KEV has become the de facto cross-industry prioritization signal — many enterprise vulnerability-management programs and cyber insurers treat KEV inclusion as a 'patch immediately' marker, and many ASPM/CSPM platforms surface KEV status alongside EPSS, CVSS, and reachability data. KEV is widely paired with the EPSS score (Exploit Prediction Scoring System) for risk-based vulnerability management.
● 例
- 01
A FortiManager 'FortiJump' CVE-2024-47575 is added to KEV the day Mandiant publishes the post; FCEB agencies have a strict deadline to patch.
- 02
An enterprise patch prioritization policy mandates remediation of any KEV-listed CVE within seven days, regardless of CVSS, EPSS, or asset criticality.
● よくある質問
CISA Known Exploited Vulnerabilities (KEV) Catalog とは何ですか?
A U.S. CISA-maintained list of CVEs with credible evidence of in-the-wild exploitation, paired with mandatory remediation deadlines for U.S. federal civilian agencies and widely used by enterprises as a priority signal. サイバーセキュリティの 脆弱性 カテゴリに属します。
CISA Known Exploited Vulnerabilities (KEV) Catalog とはどういう意味ですか?
A U.S. CISA-maintained list of CVEs with credible evidence of in-the-wild exploitation, paired with mandatory remediation deadlines for U.S. federal civilian agencies and widely used by enterprises as a priority signal.
CISA Known Exploited Vulnerabilities (KEV) Catalog はどのように機能しますか?
The CISA Known Exploited Vulnerabilities (KEV) Catalog is a list maintained by the U.S. Cybersecurity and Infrastructure Security Agency of vulnerabilities for which CISA has credible evidence of active in-the-wild exploitation. KEV launched in November 2021 under Binding Operational Directive 22-01, which makes remediation of listed CVEs mandatory for U.S. Federal Civilian Executive Branch (FCEB) agencies within a stated deadline (typically two to three weeks). Each entry includes the CVE, product, short description, required action, due date, and the date added. By 2025 the catalog held over 1,300 CVEs across operating systems, network appliances, VPNs, RMM, productivity software, and ICS. Despite its formal scope being U.S. federal, KEV has become the de facto cross-industry prioritization signal — many enterprise vulnerability-management programs and cyber insurers treat KEV inclusion as a 'patch immediately' marker, and many ASPM/CSPM platforms surface KEV status alongside EPSS, CVSS, and reachability data. KEV is widely paired with the EPSS score (Exploit Prediction Scoring System) for risk-based vulnerability management.
CISA Known Exploited Vulnerabilities (KEV) Catalog からどのように防御しますか?
CISA Known Exploited Vulnerabilities (KEV) Catalog に対する防御は通常、上記の定義で述べたとおり、技術的統制と運用上の実践を組み合わせます。
CISA Known Exploited Vulnerabilities (KEV) Catalog の別名は何ですか?
一般的な別名: KEV, Known Exploited Vulnerabilities。
● 関連用語
- vulnerabilities№ 663
既知の悪用された脆弱性(KEV)
実環境での悪用が CISA(米国)によって確認され、公開 KEV カタログに追加された CVE。米連邦機関に対する修正期限の対象となる。
- vulnerabilities№ 285
CVE(共通脆弱性識別子)
公開された各ソフトウェア・ハードウェア脆弱性に一意の識別子を付与し、業界全体で曖昧さなく参照できるようにする公的カタログ。
- vulnerabilities№ 287
CVSS(共通脆弱性評価システム)
FIRST が維持するオープンなフレームワークで、脆弱性の悪用特性と影響に基づき 0〜10 の深刻度スコアを算出する。
- vulnerabilities№ 428
EPSS(エクスプロイト予測スコアリングシステム)
FIRST が維持するデータ駆動型モデルで、ある CVE が今後 30 日以内に実環境で悪用される確率を推定する。
- vulnerabilities№ 1343
脆弱性
システム、アプリケーション、または運用プロセスに存在する弱点で、攻撃者が機密性・完全性・可用性を侵害するために悪用できるもの。
- defense-ops№ 1345
脆弱性スキャン
既知の脆弱性シグネチャに照らしてシステム・アプリケーション・コンテナを自動的に検査し、潜在的な弱点の一覧を生成するプロセス。