CISOs at SMBs Need to Prepare for Zero-Day Vulnerabilities

Zero-day vulnerabilities are among the most worrisome cyber security risks for organizations, because they deal with the unknown and there is little time to mitigate the risks. These are software vulnerabilities that providers of software products are not initially aware of; or if they are aware of them, they have not had time to create a fix.

The problem of zero-day vulnerabilities can be compounded by threat actors accessing government-grade exploitation capabilities, as was experienced with the EternalBlue leak that enabled the notorious WannaCry ransomware attack in 2017.

Until these vulnerabilities are patched, cyber criminals can exploit them to launch zero-day attacks or in some other way impact the systems and data of companies. Once a fix has been developed and applied to the affected software, the chance of an exploit being successful decreases.

Log4j – A stark reminder

Zero-day events are intimidating because they seemingly come out of nowhere. The more recently a software vendor has become aware of a vulnerability, the more likely it is that no mitigation has yet been developed.

One of the most recent and prominent examples of a zero-day vulnerability is the one involving Log4j, a Java-based logging framework—part of the Apache Logging Services—that is

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