CVE-2026-64330
kernel: usb: typec: tcpm: Validate SVID index in svdm_consume_modes()
Severity
ModerateRed Hat Product Security
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 · 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 · Out-of-bounds Read