SEPTEMBER 18, 2026
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Case File

CVE-2026-89438

UNKNOWN · CVSS N/A EPSS 0.20%

Source: NVD + CISA KEV + EPSS · Published 2026-09-11 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

A vulnerability in the Linux kernel affects the platform/x86 component, specifically related to the validation of logical CPU IDs and CLOS IDs for core power features. This flaw could allow an attacker to exploit improper validation, potentially leading to unauthorized access or manipulation of memory-mapped I/O offsets. Organizations using affected Linux systems should prioritize patching to mitigate potential risks associated with this vulnerability.

CVE
CVE-2026-89438
Severity
UNKNOWN
CVSS
N/A
EPSS
0.20%
Linux

Original NVD Description

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.