Zimbra Collaboration Suite (Zcs)
5 CVEs tracked. None of them is in CISA KEV.
This hub aggregates every CVE we track for Zimbra Collaboration Suite (Zcs), a product in the communications space. Use it to gauge the current risk picture and drill into individual advisories.
Zimbra Collaboration Suite (Zcs) CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 0 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 0 |
| 2025-03 | 0 |
| 2025-04 | 0 |
| 2025-05 | 0 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 0 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 0 |
| 2026-08 | 0 |
| 2026-09 | 4 |
Severity
How the 5 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical4
- High1
Latest CVEs
The 5 most recently published vulnerabilities affecting Zimbra Collaboration Suite (Zcs).
- CVE-2026-93647Zimbra Collaboration Suite Classic Web Client Stored Cross-Site Scripting via Crafted Calendar COUNTER Message From Address9.3
- CVE-2026-93643Zimbra Collaboration Suite OnlyOffice Integration Path Traversal Leading to Remote Code Execution via Unauthenticated /downloadas Request9.8
- CVE-2026-93642Zimbra Collaboration Suite Modern Web Client Stored Cross-Site Scripting via Forged Share Invitation9.3
- CVE-2026-93641Zimbra Collaboration Suite Classic Web Client Stored Cross-Site Scripting via Forged Share Invitation9.3
- CVE-2022-3569Due to an issue with incorrect sudo permissions, Zimbra Collaboration Suite (ZCS) suffers from a local privilege escalation issue in versions 9.0.0 and prior, where the 'zimbra' user can effectivel...7.8
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