CVE-2025-30188: Open-Xchange GmbH Ox App Suite

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Malicious or unintentional API requests can be used to add significant amount of data to caches. Caches may evict information that is required to operate the web frontend, which leads to unavailability of the component. Please deploy the provided updates and patch releases. No publicly available exploits are known

Affected products

• Open-Xchange GmbH Ox App Suite: up to and including 2.1.7

Published 2025-10-31. Last modified 2026-10-07.