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Vol. 1 · Ed. 2026
CyberGlossary
Entry № 194

CISA Known Exploited Vulnerabilities (KEV) Catalog

¿Qué es CISA Known Exploited Vulnerabilities (KEV) Catalog?

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.

Ejemplos

  1. 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.

  2. 02

    An enterprise patch prioritization policy mandates remediation of any KEV-listed CVE within seven days, regardless of CVSS, EPSS, or asset criticality.

Preguntas frecuentes

¿Qué es CISA Known Exploited Vulnerabilities (KEV) Catalog?

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. Pertenece a la categoría de Vulnerabilidades en ciberseguridad.

¿Qué significa CISA Known Exploited Vulnerabilities (KEV) Catalog?

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.

¿Cómo funciona CISA Known Exploited Vulnerabilities (KEV) Catalog?

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.

¿Cómo defenderse de CISA Known Exploited Vulnerabilities (KEV) Catalog?

Las defensas contra CISA Known Exploited Vulnerabilities (KEV) Catalog combinan habitualmente controles técnicos y prácticas operativas, como se detalla en la definición.

¿Cuáles son otros nombres para CISA Known Exploited Vulnerabilities (KEV) Catalog?

Nombres alternativos comunes: KEV, Known Exploited Vulnerabilities.

Términos relacionados

Véase también