CVE intelligence

CVE-2026-64463

Vulnerability intelligence

Published Jul 25, 2026Sources checked Oct 21, 2026

7.8HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-64463 and is rated High severity with a CVSS score of 7.8. 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

EPSS0.1%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-64463?

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

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres

rt1711h_probe() registers the TCPCI port before requesting the interrupt and enabling alert interrupts. If either of those later steps fails, the probe function returns without unregistering the TCPCI port.

The explicit unregister currently only happens from the remove callback.

Register a devres action immediately after tcpci_register_port() succeeds, so tcpci_unregister_port() runs on later probe failures and on driver detach. Drop the remove callback to avoid unregistering the same port twice.

This issue was identified during our ongoing static-analysis research while reviewing kernel code.

Source: NVD