What is CVE-2026-97362?

CVE-2026-97362 is a high-severity vulnerability in Rejetto Hfs2, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-09-24.

How severe is CVE-2026-97362?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Rejetto Hfs2

CVE-2026-97362

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.

Published 2026-09-24 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (21.8th percentile), scored 2026-11-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Rejetto Hfs2

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

github.com/wgetnz/hfs2/blob/master/advisories/hfs2-getini-infinite-loop-dos/REA… (technical-description, exploit)
VulnCheck Advisory (third-party-advisory)

Frequently asked questions

What is CVE-2026-97362?: CVE-2026-97362 is a high-severity vulnerability in Rejetto Hfs2, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-09-24.
How severe is CVE-2026-97362?: High severity. CVSS v3 base score is 7.5 out of 10.