Get to Know KEV In Our New Research Report

Known Exploitable Vulnerabilities research

Do you know KEV? You should, because hackers do! Rezilion’s research team just released a new report, which highlights the critical importance of Known Exploited Vulnerabilities (KEV). Specifically, our research uncovers that although KEV catalog vulnerabilities are frequent targets of APT Groups, many organizations are still exposed and at risk from these vulnerabilities because they are not patching them. This gap in patching may be due to a lack of awareness, or a lack of patching resources, or both.

The KEV catalog, maintained by the Cybersecurity and Infrastructure Security Agency (CISA), is a reliable source of information on vulnerabilities that have been exploited in the past or are currently under active exploitation by attackers. According to our new research, there are over 15 million vulnerable instances in the KEV catalog, with the majority being vulnerable Microsoft Windows instances. That’s a massive number of systems exposed to attacks, leaving organizations vulnerable to exploitation from threat actors and Advanced Persistent Threat (APT) groups.

With thousands of ongoing exploitation attempts targeting KEV vulnerabilities, it’s essential to prioritize patching these vulnerabilities before they are exploited. Read the report today and learn more about how to minimize your organization’s risk to KEV.  To download the full report, please visit


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