CVE-2021-26318

MediumCVSS 4.7/10Last modified Jun 17, 2026

Description

A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-208 CWE-203

Affected software

No affected versions have been published.

Timeline

Published: Oct 13, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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