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Cybersecurity glossary

What is known Exploited Vulnerabilities?

Also known as: KEV, CISA KEV

Definition

CISA’s Known Exploited Vulnerabilities (KEV) catalog lists vulnerabilities with reliable evidence that attackers are exploiting them.

Why it matters

US federal civilian agencies must remediate KEV entries by set deadlines, and CISA urges all organizations to use the catalog to prioritize patching. It is one of the most useful free signals for small teams.

Common questions about known Exploited Vulnerabilities

See also

Sources