Zimbra Zero‑Day Abused via Malicious iCalendar (.ICS) Attachments
Zimbra Zero‑Day Abused via Malicious iCalendar (.ICS) Attachments Summary of the discovery 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. That finding indicates attackers leveraged the iCalendar format — commonly used for meeting invites and calendar…