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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 24 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 24 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
Description 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.
Title HFS2 2.4.0 Unauthenticated Denial of Service via Hung Serving Thread
First Time appeared Rejetto
Rejetto hfs2
Weaknesses CWE-835
CPEs cpe:2.3:a:rejetto:hfs2:*:*:*:*:*:*:*:*
Vendors & Products Rejetto
Rejetto hfs2
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-24T15:47:35.811Z

Reserved: 2026-09-24T13:33:30.061Z

Link: CVE-2026-97362

cve-icon Vulnrichment

Updated: 2026-09-24T15:46:09.398Z

cve-icon NVD

Status : Received

Published: 2026-09-24T15:18:01.393

Modified: 2026-09-24T16:17:29.420

Link: CVE-2026-97362

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses