Hackers exploited Zimbra flaw as zero-day using iCalendar files

Researchers monitoring for larger .ICS calendar attachments found that a flaw in Zimbra Collaboration Suite (ZCS) was used in zero-day attacks at the beginning of the year. [...]

https://www.bleepingcomputer.com/news/security/hackers-exploited-zimbra-flaw-as-zero-day-using-icalendar-files/

Posted from: this blog via Microsoft Power Automate.