CVE-2026-63959: usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT

Overview

Severity

Critical (CVSS 9.8)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-21

EPSS Score

0.21% (percentile: 10.6%)

Affected Products (1)

Other

• 21580-17084

Revision History

• 2026-07-21: Information published.