CVE-2026-63959

Not scored yetLast modified Jul 30, 2026

Description

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

usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT

A broken/malicious port can transmit a CRC-valid frame whose header advertises up to seven data objects but whose body carries fewer than that. Check for this, and rightfully reject the message, instead of reading from uninitialized stack memory.

Metrics

No CVSS score has been published yet.

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Jul 19, 2026
Last modified
Jul 30, 2026
NVD status
Undergoing Analysis

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CVE-2026-63959: Unscored | Vulnix