CVE-2026-73570
Zimbra Collaboration Suite (ZCS) OS Command Injection Vulnerability
8.9
CVSS 3.1
11.7 %
EPSS (current)
2026-08-21
KEV addition
No
Ransomware
Timeline
Publication, first public exploit and KEV addition on a day axis.
Key facts
Vendor / product: Synacor / Zimbra Collaboration Suite (ZCS)
Published: 2026-08-13 · Due (CISA): 2026-08-24
CWE: CWE-78 · EU list: no
Exploit references (metadata only)
| Source | Reference | Title | Date |
|---|---|---|---|
| nuclei | network/cves/2026/CVE-2026-73570.yaml | Zimbra Collaboration Suite < 10.1.20 - OS Command Injection | – |
References only — no downloads or instructions.