high
7.5
Advisory Published
Updated

CVE-2021-46774

First published: Tue Nov 14 2023(Updated: )

Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.

Credit: psirt@amd.com

Affected SoftwareAffected VersionHow to fix
All of
Amd Epyc Server Firmware<naplespi_1.0.0.k
AMD EPYC 7001 Firmware
All of
AMD EPYC 7251 Firmware<naplespi_1.0.0.k
AMD EPYC 7251 Firmware
All of
AMD EPYC 7261 Firmware<naplespi_1.0.0.k
AMD EPYC 7261
All of
Amd Epyc Server Firmware<naplespi_1.0.0.k
AMD EPYC Server
All of
Amd Epyc Server Firmware<naplespi_1.0.0.k
AMD EPYC 7301 Firmware
All of
AMD EPYC 7351P Firmware<naplespi_1.0.0.k
AMD EPYC 7351 Firmware
All of
AMD EPYC 7351P Firmware<naplespi_1.0.0.k
AMD EPYC 7351P Firmware
All of
AMD EPYC 7371 Firmware<naplespi_1.0.0.k
AMD EPYC 7371 Firmware
All of
AMD EPYC 7401P Firmware<naplespi_1.0.0.k
AMD EPYC 7401 Firmware
All of
AMD EPYC 7401P Firmware<naplespi_1.0.0.k
AMD EPYC 7401P Firmware
All of
AMD EPYC 7451 Firmware<naplespi_1.0.0.k
AMD EPYC 7451 Firmware
All of
AMD EPYC 7501 Firmware<naplespi_1.0.0.k
AMD EPYC Server
All of
AMD EPYC 7551P Firmware<naplespi_1.0.0.k
AMD EPYC 7551 Firmware
All of
AMD EPYC 7551P Firmware<naplespi_1.0.0.k
AMD EPYC 7551P Firmware
All of
AMD EPYC 7601 Firmware<naplespi_1.0.0.k
AMD EPYC 7601 Firmware
All of
AMD EPYC 7232p firmware<romepi_1.0.0.g
AMD EPYC 7232p firmware
All of
AMD EPYC 7252 Firmware<romepi_1.0.0.g
AMD EPYC 7252 Firmware
All of
AMD EPYC 7262 Firmware<romepi_1.0.0.g
AMD EPYC 7262 Firmware
All of
AMD EPYC 7272 firmware<romepi_1.0.0.g
AMD EPYC 7272 firmware
All of
AMD EPYC 7282 Firmware<romepi_1.0.0.g
AMD EPYC 7282 Firmware
All of
Amd Epyc Server Firmware<romepi_1.0.0.g
AMD EPYC 7302 Firmware
All of
AMD EPYC 7302P Firmware<romepi_1.0.0.g
AMD EPYC 7302P Firmware
All of
AMD EPYC Firmware<romepi_1.0.0.g
AMD EPYC 7352 firmware
All of
Amd Epyc Server Firmware<romepi_1.0.0.g
AMD EPYC 7402 Firmware
All of
AMD EPYC 7402P Firmware<romepi_1.0.0.g
AMD EPYC 7402P Firmware
All of
AMD EPYC 7452 Firmware<romepi_1.0.0.g
AMD EPYC Server
All of
AMD EPYC 7502 Firmware<romepi_1.0.0.g
AMD EPYC 7502 firmware
All of
AMD EPYC 7502P Firmware<romepi_1.0.0.g
AMD EPYC 7502P Firmware
All of
AMD EPYC 7532 Firmware<romepi_1.0.0.g
AMD EPYC 7532 Firmware
All of
AMD EPYC 7542 Firmware<romepi_1.0.0.g
AMD EPYC Server
All of
AMD EPYC 7552 Firmware<romepi_1.0.0.g
AMD EPYC 7552 Firmware
All of
AMD EPYC 7642 Firmware<romepi_1.0.0.g
AMD EPYC 7642 Firmware
All of
AMD EPYC 7662 Firmware<romepi_1.0.0.g
AMD EPYC 7662 Firmware
All of
AMD EPYC 7702p firmware<romepi_1.0.0.g
AMD EPYC Server
All of
AMD EPYC 7702 Firmware<romepi_1.0.0.g
AMD EPYC 7702P
All of
AMD EPYC 7742 Firmware<romepi_1.0.0.g
AMD EPYC Server
All of
AMD EPYC 7F32 Firmware<romepi_1.0.0.g
AMD EPYC 7F32 Firmware
All of
AMD EPYC 7F52 Firmware<romepi_1.0.0.g
AMD EPYC 7F52 Firmware
All of
AMD EPYC 7F72<romepi_1.0.0.g
AMD EPYC 7F72 Firmware
All of
AMD EPYC 7H12 Firmware<romepi_1.0.0.g
AMD EPYC 7H12 Firmware
All of
AMD EPYC 7763 Firmware<milanpi_1.0.0.b
AMD EPYC 7763 Firmware
All of
AMD EPYC 7713P Firmware<milanpi_1.0.0.b
AMD EPYC 7713P Firmware
All of
AMD EPYC 7713P Firmware<milanpi_1.0.0.b
AMD EPYC 7713 Firmware
All of
AMD EPYC 7663P Firmware<milanpi_1.0.0.b
AMD EPYC 7663P Firmware
All of
AMD EPYC 7663 Firmware<milanpi_1.0.0.b
AMD EPYC 7663 Firmware
All of
AMD EPYC Firmware<milanpi_1.0.0.b
AMD EPYC 7643P Firmware
All of
AMD EPYC 7773X Firmware<milanpi_1.0.0.b
AMD EPYC 7773X Firmware
All of
AMD EPYC 7643P Firmware<milanpi_1.0.0.b
AMD EPYC 7643 Firmware
All of
AMD EPYC 7573X Firmware<milanpi_1.0.0.b
AMD EPYC 7573X Firmware
All of
AMD EPYC 75F3 Firmware<milanpi_1.0.0.b
AMD EPYC 75F3 Firmware
All of
AMD EPYC 7543P Firmware<milanpi_1.0.0.b
AMD EPYC 7543P Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.b
AMD EPYC 7543 Firmware
All of
AMD EPYC 7513 Firmware<milanpi_1.0.0.b
AMD EPYC 7513 Firmware
All of
AMD EPYC 7473X Firmware<milanpi_1.0.0.b
AMD EPYC 7473X Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.b
AMD EPYC Server
All of
AMD EPYC 74F3 Firmware<milanpi_1.0.0.b
AMD EPYC 74F3 Firmware
All of
AMD EPYC 7443P Firmware<milanpi_1.0.0.b
AMD EPYC 7443P Firmware
All of
AMD EPYC 7443P Firmware<milanpi_1.0.0.b
AMD EPYC 7443P
All of
AMD EPYC 7413 Firmware<milanpi_1.0.0.b
AMD EPYC 7413 Firmware
All of
AMD EPYC 7373X Firmware<milanpi_1.0.0.b
AMD EPYC 7373X Firmware
All of
AMD EPYC 73F3 Firmware<milanpi_1.0.0.b
AMD EPYC 73F3 Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.b
AMD EPYC 7343 Firmware
All of
AMD EPYC 7313P Firmware<milanpi_1.0.0.b
AMD EPYC 7313P Firmware
All of
AMD EPYC Firmware<milanpi_1.0.0.b
AMD EPYC 7313 Firmware
All of
AMD EPYC 7303P Firmware<milanpi_1.0.0.b
AMD EPYC 7303P
All of
AMD EPYC 7303 Firmware<milanpi_1.0.0.b
AMD EPYC 7303 Firmware
All of
AMD EPYC 72F3 Firmware<milanpi_1.0.0.b
AMD EPYC 72F3 Firmware
All of
AMD EPYC Firmware<milanpi_1.0.0.b
AMD EPYC 7203P Firmware
All of
AMD EPYC 7203 Firmware<milanpi_1.0.0.b
AMD EPYC 7203 Firmware
All of
AMD EPYC 9654P Firmware<genoapi_1.0.0.8
AMD EPYC 9654P Firmware
All of
AMD EPYC 9654 Firmware<genoapi_1.0.0.8
AMD EPYC 9654 firmware
All of
AMD EPYC 9634 Firmware<genoapi_1.0.0.8
AMD EPYC 9634 Firmware
All of
AMD EPYC 9554P Firmware<genoapi_1.0.0.8
AMD EPYC 9554P
All of
AMD EPYC 9554P Firmware<genoapi_1.0.0.8
AMD EPYC 9554 Firmware
All of
AMD EPYC 9534 Firmware<genoapi_1.0.0.8
AMD EPYC 9534 Firmware
All of
AMD EPYC 9474F Firmware<genoapi_1.0.0.8
AMD Epyc 9474F Firmware
All of
AMD EPYC 9454P Firmware<genoapi_1.0.0.8
AMD EPYC 9454P Firmware
All of
AMD EPYC 9454P Firmware<genoapi_1.0.0.8
AMD EPYC 9454P
All of
AMD EPYC 9374F Firmware<genoapi_1.0.0.8
AMD EPYC 9374F Firmware
All of
AMD EPYC 9354P Firmware<genoapi_1.0.0.8
AMD EPYC 9354P
All of
AMD EPYC 9354 Firmware<genoapi_1.0.0.8
AMD EPYC 9354P
All of
AMD EPYC 9334 firmware<genoapi_1.0.0.8
AMD EPYC 9334 firmware
All of
AMD EPYC 9274F Firmware<genoapi_1.0.0.8
AMD EPYC 9274F Firmware
All of
AMD EPYC 9254 Firmware<genoapi_1.0.0.8
AMD EPYC 9254 Firmware
All of
AMD EPYC 9224 Firmware<genoapi_1.0.0.8
AMD EPYC 9224
All of
AMD EPYC 9174F Firmware<genoapi_1.0.0.8
AMD EPYC 9174F Firmware
All of
AMD EPYC 9124 Firmware<genoapi_1.0.0.8
AMD EPYC 9124 Firmware
All of
AMD EPYC 9684X Firmware<genoapi_1.0.0.8
AMD EPYC 9684X Firmware
All of
AMD EPYC 9384X Firmware<genoapi_1.0.0.8
AMD EPYC 9384X Firmware
All of
AMD EPYC 9184X Firmware<genoapi_1.0.0.8
AMD EPYC 9184X firmware
All of
Amd Epyc Server Firmware<genoapi_1.0.0.8
AMD EPYC 9754 Firmware
All of
AMD EPYC 9754S Firmware<genoapi_1.0.0.8
AMD EPYC 9754S Firmware
All of
AMD EPYC 9734 Firmware<genoapi_1.0.0.8
AMD EPYC 9734 Firmware
All of
AMD EPYC Firmware<genoapi_1.0.0.8
AMD EPYC 8534P Firmware
All of
AMD EPYC 8534PN Firmware<genoapi_1.0.0.8
AMD EPYC 8534PN Firmware
All of
AMD EPYC 8434P Firmware<genoapi_1.0.0.8
AMD EPYC 8434P Firmware
All of
AMD EPYC 8434P Firmware<genoapi_1.0.0.8
AMD EPYC 8434PN Firmware
All of
AMD EPYC 8324P Firmware<genoapi_1.0.0.8
AMD EPYC 8324P Firmware
All of
AMD EPYC 8324PN Firmware<genoapi_1.0.0.8
AMD EPYC 8324PN Firmware
All of
AMD EPYC 8224PN Firmware<genoapi_1.0.0.8
AMD EPYC 8224P Firmware
All of
AMD EPYC 8224PN Firmware<genoapi_1.0.0.8
AMD EPYC 8224PN Firmware
All of
AMD EPYC Firmware<genoapi_1.0.0.8
AMD EPYC 8124P Firmware
All of
AMD EPYC 8124PN<genoapi_1.0.0.8
AMD EPYC 8124PN Firmware
All of
AMD EPYC 8024PN Firmware<genoapi_1.0.0.8
AMD EPYC 8024PN Firmware
All of
AMD EPYC 8024PN Firmware<genoapi_1.0.0.8
AMD EPYC 8024PN Firmware
All of
AMD Ryzen 9 3950XT firmware
AMD Ryzen 9 3950XT
All of
AMD Ryzen 9 3950XT Firmware
AMD Ryzen 9 3950XT firmware
All of
AMD Ryzen 9 3900XT Firmware
AMD Ryzen 9 Pro 3900
All of
AMD Ryzen 9 3900X
AMD Ryzen 9 3900X
All of
AMD Ryzen 7 3800XT Firmware
AMD Ryzen 7 3800X Firmware
All of
AMD Ryzen 7 3800XT Firmware
AMD Ryzen 7 3800XT Firmware
All of
AMD Ryzen 7 3700XT Firmware
AMD Ryzen 7 3700XT Firmware
All of
AMD Ryzen 5 3600X Firmware
AMD Ryzen 5 3600X Firmware
All of
AMD Ryzen 5 3600XT
AMD Ryzen 5 3600XT firmware
All of
AMD Ryzen 5 3600 firmware
AMD Ryzen 5 3600 firmware
All of
AMD Ryzen 5 3500X Firmware
AMD Ryzen 5 3500X Firmware
All of
AMD Ryzen 5 3500X Firmware
AMD Ryzen 5 3500
All of
AMD Ryzen 3 3300X Firmware
AMD Ryzen 3 3300X Firmware
All of
AMD Ryzen 3100 Firmware
AMD Ryzen 3 3100 Firmware
All of
AMD Ryzen 9 5950X<comboam4_v2_pi_1.2.0.6
AMD Ryzen 9 5950X
All of
AMD Ryzen 9 5900X Firmware<comboam4_v2_pi_1.2.0.6
AMD Ryzen 9 5900X
All of
AMD Ryzen 9 5900 Firmware<comboam4_v2_pi_1.2.0.6
AMD Ryzen 5900 CPU
All of
AMD Ryzen 7 5800X3D Firmware<comboam4_v2_pi_1.2.0.6
AMD Ryzen 7 5800X3D Firmware
All of
AMD Ryzen 7 5800X Firmware<comboam4_v2_pi_1.2.0.6
AMD Ryzen 7 5800X
All of
AMD Ryzen 7 5800 Firmware<comboam4_v2_pi_1.2.0.6
AMD Ryzen 7 5800
All of
AMD Ryzen 5700X Firmware<comboam4_v2_pi_1.2.0.6
AMD Ryzen 5700X Firmware
All of
AMD Ryzen 5 5600 Firmware<comboam4_v2_pi_1.2.0.6
AMD Ryzen 5 5600
All of
AMD Ryzen 5 5600X<comboam4_v2_pi_1.2.0.6
AMD Ryzen 5 5600X Firmware
All of
AMD Ryzen 5 5500 firmware<comboam4_v2_pi_1.2.0.6
AMD Ryzen 5 5500 firmware
All of
AMD Ryzen Threadripper 3960X Firmware<castlepeakpi-sp3r3_1.0.0.7
AMD Ryzen Threadripper 3960X Firmware
All of
AMD Ryzen Threadripper 3970X<castlepeakpi-sp3r3_1.0.0.7
AMD Ryzen Threadripper 3970X Firmware
All of
AMD Ryzen Threadripper 3990X<castlepeakpi-sp3r3_1.0.0.7
AMD Ryzen Threadripper 3990X
All of
AMD Ryzen Threadripper Pro
AMD Ryzen Threadripper Pro 3945WX Firmware
All of
AMD Ryzen Threadripper Pro 3955WX Firmware
AMD Ryzen Threadripper Pro 3955WX Firmware
All of
AMD Ryzen Threadripper Pro 3975WX Firmware
AMD Ryzen Threadripper Pro 3975WX Firmware
All of
AMD Ryzen Threadripper Pro 3995WX Firmware
AMD Ryzen Threadripper Pro
All of
AMD Ryzen Threadripper PRO 3795WX Firmware<chagallwspi-swrx8_1.0.0.0
AMD Ryzen Threadripper PRO 3795WX Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-46774?

    The severity of CVE-2021-46774 is classified as high, as it may allow an attacker to read or write to invalid DRAM addresses.

  • How do I fix CVE-2021-46774?

    To fix CVE-2021-46774, update the firmware to the latest version provided by AMD for affected EPYC processors.

  • Which systems are affected by CVE-2021-46774?

    CVE-2021-46774 affects several AMD EPYC processor firmware versions, specifically those prior to specified updates.

  • What are the potential impacts of CVE-2021-46774?

    The potential impacts of CVE-2021-46774 include denial-of-service conditions when invalid memory addresses are accessed.

  • Is there a workaround for CVE-2021-46774?

    There are no known workarounds for CVE-2021-46774; applying the firmware update is the recommended approach.

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