CVE Database›Document archive›CVE-2026-64330

CVE-2026-64330

kernel: usb: typec: tcpm: Validate SVID index in svdm_consume_modes()

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Severity

Moderate

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · July 25, 2026

Updated · October 16, 2026

Description

A flaw was found in the Linux kernel's USB Type-C subsystem (tcpm). A malicious USB-C partner device could exploit an out-of-bounds read vulnerability in the svdm_consume_modes() function. By manipulating the SVID (Standard or Vendor ID) index, the partner device can force the system to register an arbitrary SVID. This could potentially allow the malicious device to bypass security checks or gain unauthorized control over USB-C alternate modes.

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 · 7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CWE-125 · Out-of-bounds Read