CVE intelligence

CVE-2026-64240

Vulnerability intelligence

Published Jul 24, 2026Sources checked Oct 8, 2026

5.5MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-64240 and is rated Medium severity with a CVSS score of 5.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-64240?

In the Linux kernel, the following vulnerability has been resolved:

media: rc: igorplugusb: fix control request setup packet

Commit eac69475b01f ("media: rc: igorplugusb: heed coherency rules") changed the control request storage from an embedded struct to an allocated pointer so it can obey DMA coherency rules.

However, the driver still passes &ir->request to usb_fill_control_urb(). That points the URB setup packet at the pointer field itself rather than at the allocated struct usb_ctrlrequest.

USB core then interprets pointer bytes as the setup packet. This can produce an invalid bRequestType and trigger the control direction warning reported by syzbot:

usb 2-1: BOGUS control dir, pipe 80003580 doesn't match bRequestType 0

Pass ir->request itself as the setup packet.

Source: NVD