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Technical details of the vulnerabilities are not included rather, we discuss overall takeaways from threat actor activity, vulnerability trends, and targeted vendors and products. While we believe the referenced open sources are reliable as used in this analysis, we cannot independently confirm the findings of some sources. This report examines zero-day exploitation identified in Mandiant's original research, combined with breach investigation findings, and reporting from open sources, focusing on zero-days exploited by named groups.

Mandiant considers a zero-day to be a vulnerability that was exploited in the wild before a patch was made publicly available. The purpose of this report is to share insights from Mandiant's analysis of 2022 zero-day exploitation. The most exploited product types were operating systems (OS) (19), followed by browsers (11), security, IT, and network management products (10), and mobile OS (6). Products from Microsoft, Google, and Apple made up the majority of zero-day vulnerabilities in 2022, consistent with previous years.75% of these instances appear to be linked to ransomware operations. We identified four zero-day vulnerabilities exploited by financially motivated threat actors.Chinese state-sponsored cyber espionage groups exploited more zero-days than other cyber espionage actors in 2022, which is consistent with previous years.Although this count is lower than the record-breaking 81 zero-days exploited in 2021, it still represents almost triple the number from 2020. Mandiant tracked 55 zero-day vulnerabilities that we judge were exploited in 2022.Create a Free Mandiant Advantage Account.Noteholder and Preferred Shareholder Documents.