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CVE-2026-89438

Опубликовано: 11 сент. 2026
Источник: redhat
CVSS3: 4.7
EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate MMIO offset.

A flaw was found in the Linux kernel, specifically within the Intel Speed Select Technology (ISST) component. This vulnerability arises from insufficient validation of input values, such as logical CPU ID and CLOS ID, used in the core power feature. A local attacker could exploit this by providing invalid input, which might lead to incorrect calculations for memory-mapped I/O (MMIO) offsets. This could result in memory corruption, potentially allowing for system instability, unauthorized information access, or an increase in privileges.

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-787
https://bugzilla.redhat.com/show_bug.cgi?id=2532236kernel: Linux kernel: ISST input validation flaw may lead to memory corruption

EPSS

Процентиль: 10%
0.002
Низкий

4.7 Medium

CVSS3

Связанные уязвимости

ubuntu
2 дня назад

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate MMIO offset.

nvd
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate MMIO offset.

debian
4 дня назад

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

github
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate MMIO offset.

EPSS

Процентиль: 10%
0.002
Низкий

4.7 Medium

CVSS3

Уязвимость CVE-2026-89438