CVE-2021-26344: High severity amd epyc 7203 firmware vulnerability

Q: What is the severity of CVE-2021-26344?

CVE-2021-26344 has a high severity rating due to potential arbitrary code execution.

Q: How do I fix CVE-2021-26344?

To fix CVE-2021-26344, ensure that you update the affected AMD EPYC firmware to a version higher than milanpi_1.0.0.5.

Q: What systems are affected by CVE-2021-26344?

CVE-2021-26344 affects several AMD EPYC firmware versions, specifically versions before milanpi_1.0.0.5.

Q: What kind of exploitation is possible with CVE-2021-26344?

Exploitation of CVE-2021-26344 could allow an attacker with access to modify BIOS images and execute arbitrary code.

Q: Is it safe to continue using systems with CVE-2021-26344?

It is not safe to continue using affected systems without applying the firmware updates, as they are vulnerable to exploitation.

Published Aug 13, 2024

Updated

An out of bounds memory write when processing the AMD PSP1 Configuration Block (APCB) could allow an attacker with access the ability to modify the BIOS image, and the ability to sign the resulting image, to potentially modify the APCB block resulting in arbitrary code execution.

Affected Software

138 affected components

All of the following

AMD Epyc 7203 Firmware<milanpi_1.0.0.5

AMD Epyc 7203

All of the following

AMD Epyc 7203p Firmware<milanpi_1.0.0.5

AMD Epyc 7203p

All of the following

AMD Epyc 72f3 Firmware<milanpi_1.0.0.5

AMD Epyc 72f3

All of the following

AMD Epyc 7303 Firmware<milanpi_1.0.0.5

AMD Epyc 7303

All of the following

AMD Epyc 7303p Firmware<milanpi_1.0.0.5

AMD Epyc 7303p

All of the following

AMD Epyc 7313 Firmware<milanpi_1.0.0.5

AMD Epyc 7313

All of the following

AMD Epyc 7313p Firmware<milanpi_1.0.0.5

AMD Epyc 7313p

All of the following

AMD Epyc 7343 Firmware<milanpi_1.0.0.5

AMD Epyc 7343

All of the following

AMD Epyc 73f3 Firmware<milanpi_1.0.0.5

AMD Epyc 73f3

All of the following

AMD Epyc 7373x Firmware<milanpi_1.0.0.5

AMD Epyc 7373x

All of the following

AMD Epyc 7413 Firmware<milanpi_1.0.0.5

AMD Epyc 7413

All of the following

AMD Epyc 7443 Firmware<milanpi_1.0.0.5

AMD Epyc 7443

All of the following

AMD Epyc 7443p Firmware<milanpi_1.0.0.5

AMD Epyc 7443p

All of the following

AMD Epyc 74f3 Firmware<milanpi_1.0.0.5

AMD Epyc 74f3

All of the following

AMD Epyc 7453 Firmware<milanpi_1.0.0.5

AMD Epyc 7453

All of the following

AMD Epyc 7473x Firmware<milanpi_1.0.0.5

AMD Epyc 7473x

All of the following

AMD Epyc 7513 Firmware<milanpi_1.0.0.5

AMD Epyc 7513

All of the following

AMD Epyc 7543 Firmware<milanpi_1.0.0.5

AMD Epyc 7543

All of the following

AMD Epyc 7543p Firmware<milanpi_1.0.0.5

AMD Epyc 7543p

All of the following

AMD Epyc 75f3 Firmware<milanpi_1.0.0.5

AMD Epyc 75f3

All of the following

AMD Epyc 7573x Firmware<milanpi_1.0.0.5

AMD Epyc 7573x

All of the following

AMD Epyc 7643 Firmware<milanpi_1.0.0.5

AMD Epyc 7643

All of the following

AMD Epyc 7773x Firmware<milanpi_1.0.0.5

AMD Epyc 7773x

All of the following

AMD Epyc 7643p Firmware<milanpi_1.0.0.5

AMD Epyc 7643p

All of the following

AMD Epyc 7663 Firmware<milanpi_1.0.0.5

AMD Epyc 7663

All of the following

AMD Epyc 7663p Firmware<milanpi_1.0.0.5

AMD Epyc 7663p

All of the following

AMD Epyc 7713 Firmware<milanpi_1.0.0.5

AMD Epyc 7713

All of the following

AMD Epyc 7713p Firmware<milanpi_1.0.0.5

AMD Epyc 7713p

All of the following

AMD Epyc 7763 Firmware<milanpi_1.0.0.5

AMD Epyc 7763

All of the following

AMD Epyc 7h12 Firmware<romepi_1.0.0.c

AMD Epyc 7h12

All of the following

AMD Epyc 7f72 Firmware<romepi_1.0.0.c

AMD Epyc 7f72

All of the following

AMD Epyc 7f52 Firmware<romepi_1.0.0.c

AMD Epyc 7f52

All of the following

AMD Epyc 7f32 Firmware<romepi_1.0.0.c

AMD Epyc 7f32

All of the following

AMD Epyc 7742 Firmware<romepi_1.0.0.c

AMD Epyc 7742

All of the following

AMD Epyc 7702p Firmware<romepi_1.0.0.c

AMD Epyc 7702p

All of the following

AMD Epyc 7702 Firmware<romepi_1.0.0.c

AMD Epyc 7702

All of the following

AMD Epyc 7662 Firmware<romepi_1.0.0.c

AMD Epyc 7662

All of the following

AMD Epyc 7642 Firmware<romepi_1.0.0.c

AMD Epyc 7642

All of the following

AMD Epyc 7552 Firmware<romepi_1.0.0.c

AMD Epyc 7552

All of the following

AMD Epyc 7542 Firmware<romepi_1.0.0.c

AMD Epyc 7542

All of the following

AMD Epyc 7532 Firmware<romepi_1.0.0.c

AMD Epyc 7532

All of the following

AMD Epyc 7502p Firmware<romepi_1.0.0.c

AMD Epyc 7502p

All of the following

AMD Epyc 7502 Firmware<romepi_1.0.0.c

AMD Epyc 7502

All of the following

AMD Epyc 7452 Firmware<romepi_1.0.0.c

AMD Epyc 7452

All of the following

AMD Epyc 7402p Firmware<romepi_1.0.0.c

AMD Epyc 7402p

All of the following

AMD Epyc 7402 Firmware<romepi_1.0.0.c

AMD Epyc 7402

All of the following

AMD Epyc 7352 Firmware<romepi_1.0.0.c

AMD Epyc 7352

All of the following

AMD Epyc 7302p Firmware<romepi_1.0.0.c

AMD Epyc 7302p

All of the following

AMD Epyc 7302 Firmware<romepi_1.0.0.c

AMD Epyc 7302

All of the following

AMD Epyc 7282 Firmware<romepi_1.0.0.c

AMD Epyc 7282

All of the following

AMD Epyc 7272 Firmware<romepi_1.0.0.c

AMD Epyc 7272

All of the following

AMD Epyc 7262 Firmware<romepi_1.0.0.c

AMD Epyc 7262

All of the following

AMD Epyc 7252 Firmware<romepi_1.0.0.c

AMD Epyc 7252

All of the following

AMD Epyc 7232p Firmware<romepi_1.0.0.c

AMD Epyc 7232p

All of the following

AMD Epyc 7601 Firmware

AMD Epyc 7601

All of the following

AMD Epyc 7551p Firmware

AMD Epyc 7551p

All of the following

AMD Epyc 7551 Firmware

AMD Epyc 7551

All of the following

AMD Epyc 7501 Firmware

AMD Epyc 7501

All of the following

AMD Epyc 7451 Firmware

AMD Epyc 7451

All of the following

AMD Epyc 7401p Firmware

AMD Epyc 7401p

All of the following

AMD Epyc 7401 Firmware

AMD Epyc 7401

All of the following

AMD Epyc 7371 Firmware

AMD Epyc 7371

All of the following

AMD Epyc 7351p Firmware

AMD Epyc 7351p

All of the following

AMD Epyc 7351 Firmware

AMD Epyc 7351

All of the following

AMD Epyc 7301 Firmware

AMD Epyc 7301

All of the following

AMD Epyc 7281 Firmware

AMD Epyc 7281

All of the following

AMD Epyc 7261 Firmware

AMD Epyc 7261

All of the following

AMD Epyc 7251 Firmware

AMD Epyc 7251

All of the following

AMD Epyc 7001 Firmware

AMD Epyc 7001

Event History

Aug 13, 2024

CVE Published

via MITRE·04:49 PM

Data Sourced

via MITRE·04:49 PM

DescriptionSeverity

Data Sourced

via NVD·05:15 PM

DescriptionSeverity

Frequently Asked Questions

What is the severity of CVE-2021-26344?

CVE-2021-26344 has a high severity rating due to potential arbitrary code execution.

How do I fix CVE-2021-26344?

To fix CVE-2021-26344, ensure that you update the affected AMD EPYC firmware to a version higher than milanpi_1.0.0.5.

What systems are affected by CVE-2021-26344?

CVE-2021-26344 affects several AMD EPYC firmware versions, specifically versions before milanpi_1.0.0.5.

What kind of exploitation is possible with CVE-2021-26344?

Exploitation of CVE-2021-26344 could allow an attacker with access to modify BIOS images and execute arbitrary code.

Is it safe to continue using systems with CVE-2021-26344?

It is not safe to continue using affected systems without applying the firmware updates, as they are vulnerable to exploitation.

CVE-2021-26344: High severity amd epyc 7203 firmware vulnerability

Affected Software

Event History

Don't miss critical vulnerabilities

Frequently Asked Questions

What is the severity of CVE-2021-26344?

How do I fix CVE-2021-26344?

What systems are affected by CVE-2021-26344?

What kind of exploitation is possible with CVE-2021-26344?

Is it safe to continue using systems with CVE-2021-26344?

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