CVE-2021-26312

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-665 CWE-668

Affected software

Vendor	Product	Versions
AMD	EPYC™ Processors	various
AMD	Ryzen™ Series	various
AMD	Athlon™ Series	various

References

Timeline

Published: Nov 16, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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