Network Attack Trends: February-April 2021

Unit 42 researchers observed network attack trends, February-April 2021. In the following sections, we present our analysis of the most recently published vulnerabilities, including the severity and category. Additionally, we provide insight into how the vulnerabilities are actively exploited in the wild based on real-world data collected from Palo Alto Networks Next-Generation Firewalls. We then draw conclusions about the most commonly exploited vulnerabilities the attackers are using, as well as the severity, category and origin of each attack.

Network Attack Trends February-April 2021: Analysis of the Latest Published Vulnerabilities

From February-April 2021, a total of 4,969 new Common Vulnerabilities and Exposures (CVE) numbers were registered. To better understand the potential impact they could have on network security, we collected as many details as possible for each CVE. In the following sections, we provide our observations based on the severity, affected products and vulnerability categories.

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Source: Palo Alto