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CVE-2026-63959

Опубликовано: 19 июл. 2026
Источник: redhat
EPSS Низкий

Описание

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.

A flaw was found in the Linux kernel's USB Type-C (Universal Serial Bus Type-C) subsystem. A malicious or broken USB-C port can transmit a specially crafted data frame that advertises more data objects than it actually contains. This can lead to the system reading from uninitialized memory, potentially disclosing sensitive information or causing system instability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelFix deferred
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelFix deferred
Red Hat Enterprise Linux 9kernel-rtFix deferred

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Дополнительная информация

Дефект:
CWE-130
https://bugzilla.redhat.com/show_bug.cgi?id=2502405kernel: usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT

EPSS

Процентиль: 10%
0.002
Низкий

Связанные уязвимости

ubuntu
13 дней назад

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.

nvd
13 дней назад

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.

msrc
12 дней назад

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

debian
13 дней назад

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

github
13 дней назад

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.

EPSS

Процентиль: 10%
0.002
Низкий