CVE-2026-30286: Funambol Zefiro

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

An arbitrary file overwrite vulnerability in Funambol, Inc. Zefiro Cloud v32.0.2026011614 allows attackers to overwrite critical internal files via the file import process, leading to arbitrary code execution or information exposure.

Affected products

• Funambol Zefiro: version 32.0.2026011614 only

Published 2026-03-31. Last modified 2026-07-24.