Exploit / PoCcritical
Zimbra users targeted in zero
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2025-27915 | Stored XSS in Zimbra Collaboration Suite Classic Web Client via Malicious ICS Files | 5.4 | 4% | KEVPoC | KEV |
Indicators of compromise
auto-extracted · verify before use · export allAll| Type | Indicator | Context |
|---|---|---|
| domain | ffrk.net | mails, contacts, and shared folders. It exfiltrates data to ffrk.net and uses multiple evasion techniques; the malicious code de |
| ipv4 | 193.29.58.37 | exfiltrate data. “Earlier in 2025, an apparent sender from 193.29.58.37 spoofed the Libyan Navy’s Office of Protocol to send a then |
From the original article
2 min read at securityaffairs.com
Threat actors exploited a Zimbra zero-day via malicious iCalendar (. ICS) files used to deliver attacks through calendar attachments. StrikeReady researchers discovered that threat actors exploited the vulnerability CVE-2025-27915 in Zimbra Collaboration Suite in zero-day attacks using malicious iCalendar (.
By @securityaffairs · securityaffairs.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.