Zimbra Zero-Day (CVE-2025-27915) Actively Exploited to Steal Credentials via Malicious Calendar Invites Vulnerability Zimbra Zero-Day (CVE-2025-27915) Actively Exploited to Steal Credentials via Malicious Calendar Invites ddos October 7, 2025 Researchers at StrikeReady uncovered a targeted campaign exploiting a zero-day in the Zimbra Collaboration Suite (ZCS) —... Read More Read more about Zimbra Zero-Day (CVE-2025-27915) Actively Exploited to Steal Credentials via Malicious Calendar Invites
