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CVE-2026-63940

Опубликовано: 19 июл. 2026
Источник: nvd
CVSS3: 9.3
EPSS Низкий

Описание

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

KVM: SEV: Ignore Port I/O requests of length '0'

Explicitly ignore Port I/O requests of length '0' (or count '0'), so that setting up the software scratch area (and other code) doesn't have to worry about underflowing the length, and to allow for WARNing on trying to configure the scratch area with len==0.

EPSS

Процентиль: 8%
0.00182
Низкий

9.3 Critical

CVSS3

Дефекты

Связанные уязвимости

CVSS3: 9.3
ubuntu
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' (or count '0'), so that setting up the software scratch area (and other code) doesn't have to worry about underflowing the length, and to allow for WARNing on trying to configure the scratch area with len==0.

CVSS3: 7
redhat
14 дней назад

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' (or count '0'), so that setting up the software scratch area (and other code) doesn't have to worry about underflowing the length, and to allow for WARNing on trying to configure the scratch area with len==0.

msrc
12 дней назад

KVM: SEV: Ignore Port I/O requests of length '0'

CVSS3: 9.3
debian
13 дней назад

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

CVSS3: 9.3
github
13 дней назад

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' (or count '0'), so that setting up the software scratch area (and other code) doesn't have to worry about underflowing the length, and to allow for WARNing on trying to configure the scratch area with len==0.

EPSS

Процентиль: 8%
0.00182
Низкий

9.3 Critical

CVSS3

Дефекты