What is CVE-2021-26326?

CVE-2021-26326 is a high-severity vulnerability in Amd 3rd Gen Epyc™, classified under Improper Initialization. CVSS score: 7.8/10. Published 2021-11-16.

How severe is CVE-2021-26326?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Amd 3rd Gen Epyc™

CVE-2021-26326

Failure to validate VM_HSAVE_PA during SNP_INIT may result in a loss of memory integrity.

Vulnerability class: Dirty Pipe (CVE-2022-0847)

EPSS: 0.003 (16.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Amd 3rd Gen Epyc™ — versions unspecified
Amd Epyc_7232p
Amd Epyc_7232p_firmware
Amd Epyc_72f3
Amd Epyc_72f3_firmware
Amd Epyc_7313
Amd Epyc_7313_firmware
Amd Epyc_7313p
Amd Epyc_7313p_firmware
Amd Epyc_7343

Weakness classification (CWE)

CWE-665 — Improper Initialization

References

psirt@amd.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-26326?: CVE-2021-26326 is a high-severity vulnerability in Amd 3rd Gen Epyc™, classified under Improper Initialization. CVSS score: 7.8/10. Published 2021-11-16.
How severe is CVE-2021-26326?: High severity. CVSS v3 base score is 7.8 out of 10.