CVE-2026-97362

8.7 HIGH 0.3% exploit odds No fix listed Denial of service Server

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-09-24 13:33 UTC ReservedThe CVE id was reserved by its CNA
2026-09-24 15:18 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-09-24 21:08 UTC Last updatedMost recent change to the record

Details

Published: 2026-09-24 15:18 UTC
Last modified: 2026-09-24 21:08 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-835
Record status: Deferred

Attack profile CVSS 4.0 · 8.7

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: None
Integrity: None
Availability: High

Raw 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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References

NVD record · CVE.org record