Zimbra Zero-Day Exploited to Target Brazilian Military via Malicious ICS Files
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 to an external server ("ffrk[.]net"). It also searches for emails in a specific folder, and |
From the original article
2 min read at thehackernews.com
A now patched security vulnerability in Zimbra Collaboration was exploited as a zero-day earlier this year in cyber attacks targeting the Brazilian military. Tracked as CVE-2025-27915 (CVSS score: 5.
By @TheHackersNews · thehackernews.com
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