CVE-2026-97362: Rejetto HFS2

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

HFS2 version 2.4.0 and earlier contains a denial of service vulnerability that allows unauthenticated attackers to cause a complete and persistent loss of availability by sending a single crafted request. Attackers can trigger a hung serving thread that enters a busy loop, rendering the entire file server unresponsive to all clients without self-recovery until an operator manually restarts the service.

Affected products

• Rejetto HFS2: from 2.0.0, up to and including 2.4.0

Published 2026-09-24. Last modified 2026-09-24.