CVE-2021-26332

Name: CVE-2021-26332
Creator: NVD / NIST
Published: 2022-05-10T19:15:08.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2021-26332 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

Description

Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.22%

12.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Amd	Epyc 7763 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7713p Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7713 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7663 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7643 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 75f3 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7543p Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7543 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7513 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7453 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 74f3 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7443p Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7443 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7413 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 73f3 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7343 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7313p Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7313 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 72f3 Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7773x Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7473x Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7573x Firmware	< milanpi-sp3_1.0.0.4
Amd	Epyc 7373x Firmware	< milanpi-sp3_1.0.0.4

References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021Vendor Advisory

Timeline

Published: May 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26332?

Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability.

How severe is CVE-2021-26332?

CVE-2021-26332 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26332?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-26332?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST