Microsoft Exchange Server

Staying current with Microsoft’s monthly patches is challenging, yet critical for one’s cybersecurity program. This week, Microsoft’s November Patch Tuesday released 55 patches, six of which were categorized as “critical,” four were previously disclosed (which means that cyber criminals may already be exploiting them), and two are being exploited now. Plugging all of these vulnerabilities

The National Security Agency (NSA) recently issued a warning to private industry about four zero-day vulnerabilities in Microsoft Exchange Server versions 2013, 2016, and 2019 used on-premises. The NSA recommends immediate patching of the vulnerabilities before they are exploited by threat actors.

The vulnerabilities could lead to remote execution of code that would allow threat

In a rare sharing of information about vulnerabilities in a blog post, Microsoft this week urged customers to download software patches to Microsoft Exchange Server after it detected “multiple 0-day exploits being used to attack on-premises versions of Microsoft Exchange Server in limited and targeted attacks.”

According to Microsoft’s Threat Intelligence Center, “[W]e are sharing