CVE-2020-28944: Open-Xchange Ox Guard

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

OX Guard 2.10.4 and earlier allows a Denial of Service via a WKS server that responds slowly or with a large amount of data.

Affected products

• Open-Xchange Ox Guard: up to and including 2.10.4

Published 2021-04-30. Last modified 2026-06-17.