CVE-2026-43488

kernel: usb: xhci: Prevent interrupt storm on host controller error (HCE)

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · May 13, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's xHCI (eXtensible Host Controller Interface) driver. When a USB Attached SCSI (UAS) storage device is connected or disconnected, the xHCI controller can report a Host Controller Error (HCE). Improper handling of this error can lead to an interrupt storm, causing severe system-level faults and a Denial of Service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-390 · Detection of Error Condition Without Action