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High severity7.5NVD Advisory· Published Aug 13, 2024· Updated Jun 17, 2026

CVE-2023-20578

CVE-2023-20578

Description

A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow an attacker with ring0 privileges and access to the BIOS menu or UEFI shell to modify the communications buffer potentially resulting in arbitrary code execution.

Affected products

121
  • AMD/AMD Ryzen™ 7000 Series Desktop Processorsv5
    Range: ComboAM5 1.0.0.1
  • AMD/AMD Ryzen™ Threadripper™ PRO 5000WX Processorsv5
    Range: ChagallWSPI-sWRX8 1.0.0.7
  • AMD/AMD Ryzen™ 7020 Series Processors with Radeon™ Graphicsv5
    Range: MendocinoPI-FT6 1.0.0.0
  • AMD/AMD Ryzen™ 6000 Series Processors with Radeon™ Graphicsv5
    Range: RembrandtPI-FP7 1.0.0.9b
  • AMD/AMD Ryzen™ 7035 Series Processors with Radeon™ Graphicsv5
    Range: RembrandtPI-FP7 1.0.0.9b
  • AMD/AMD EPYC™ Embedded 3000v5
    Range: SnowyOwl PI 1.1.0.A
  • AMD/AMD EPYC™ Embedded 7002v5
    Range: EmbRomePI-SP3 1.0.0.A
  • AMD/AMD EPYC™ Embedded 7003v5
    Range: EmbMilanPI-SP3 1.0.0.7
  • AMD/AMD EPYC™ Embedded 9003v5
    Range: EmbGenoaPI-SP5 1.0.0.0
  • AMD/AMD Ryzen™ Embedded 7000v5
    Range: EmbeddedAM5PI 1.0.0.0
  • AMD/AMD RyzenTM Embedded V3000v5
    Range: EmbeddedPI-FP7r2 1.0.0.8
  • AMD/SMMllm-create
  • AMD/Epyc 8024pn Firmware
    cpe:2.3:o:amd:epyc_8024pn_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8024p Firmware
    cpe:2.3:o:amd:epyc_8024p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8124pn Firmware
    cpe:2.3:o:amd:epyc_8124pn_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8124p Firmware
    cpe:2.3:o:amd:epyc_8124p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8224pn Firmware
    cpe:2.3:o:amd:epyc_8224pn_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8224p Firmware
    cpe:2.3:o:amd:epyc_8224p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8324pn Firmware
    cpe:2.3:o:amd:epyc_8324pn_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8324p Firmware
    cpe:2.3:o:amd:epyc_8324p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8434pn Firmware
    cpe:2.3:o:amd:epyc_8434pn_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8434p Firmware
    cpe:2.3:o:amd:epyc_8434p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8534pn Firmware
    cpe:2.3:o:amd:epyc_8534pn_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 8534p Firmware
    cpe:2.3:o:amd:epyc_8534p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9734 Firmware
    cpe:2.3:o:amd:epyc_9734_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9754s Firmware
    cpe:2.3:o:amd:epyc_9754s_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9754 Firmware
    cpe:2.3:o:amd:epyc_9754_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9184x Firmware
    cpe:2.3:o:amd:epyc_9184x_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9384x Firmware
    cpe:2.3:o:amd:epyc_9384x_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9684x Firmware
    cpe:2.3:o:amd:epyc_9684x_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9124 Firmware
    cpe:2.3:o:amd:epyc_9124_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9174f Firmware
    cpe:2.3:o:amd:epyc_9174f_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9224 Firmware
    cpe:2.3:o:amd:epyc_9224_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9254 Firmware
    cpe:2.3:o:amd:epyc_9254_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9274f Firmware
    cpe:2.3:o:amd:epyc_9274f_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9334 Firmware
    cpe:2.3:o:amd:epyc_9334_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9354 Firmware
    cpe:2.3:o:amd:epyc_9354_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9354p Firmware
    cpe:2.3:o:amd:epyc_9354p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9374f Firmware
    cpe:2.3:o:amd:epyc_9374f_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9454 Firmware
    cpe:2.3:o:amd:epyc_9454_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9454p Firmware
    cpe:2.3:o:amd:epyc_9454p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9474f Firmware
    cpe:2.3:o:amd:epyc_9474f_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9534 Firmware
    cpe:2.3:o:amd:epyc_9534_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9554 Firmware
    cpe:2.3:o:amd:epyc_9554_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9554p Firmware
    cpe:2.3:o:amd:epyc_9554p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9634 Firmware
    cpe:2.3:o:amd:epyc_9634_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9654 Firmware
    cpe:2.3:o:amd:epyc_9654_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 9654p Firmware
    cpe:2.3:o:amd:epyc_9654p_firmware:*:*:*:*:*:*:*:*
    Range: <genoapi_1.0.0.2
  • AMD/Epyc 7203 Firmware
    cpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7203p Firmware
    cpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 72f3 Firmware
    cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7303 Firmware
    cpe:2.3:o:amd:epyc_7303_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7303p Firmware
    cpe:2.3:o:amd:epyc_7303p_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7313 Firmware
    cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7313p Firmware
    cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7343 Firmware
    cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 73f3 Firmware
    cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7373x Firmware
    cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7413 Firmware
    cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7443 Firmware
    cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7443p Firmware
    cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 74f3 Firmware
    cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7453 Firmware
    cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7473x Firmware
    cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7513 Firmware
    cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7543 Firmware
    cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7543p Firmware
    cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 75f3 Firmware
    cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7573x Firmware
    cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7643 Firmware
    cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7773x Firmware
    cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7643p Firmware
    cpe:2.3:o:amd:epyc_7643p_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7663 Firmware
    cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7663p Firmware
    cpe:2.3:o:amd:epyc_7663p_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7713 Firmware
    cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7713p Firmware
    cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7763 Firmware
    cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
    Range: <milanpi_1.0.0.5
  • AMD/Epyc 7f32 Firmware3 versions
    cpe:2.3:o:amd:epyc_7h12_firmware:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:amd:epyc_7h12_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7f32_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7532_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
  • AMD/Epyc 7f72 Firmware
    cpe:2.3:o:amd:epyc_7f72_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7f52 Firmware
    cpe:2.3:o:amd:epyc_7f52_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7742 Firmware4 versions
    cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7702p_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7402p_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
  • AMD/Epyc 7702 Firmware
    cpe:2.3:o:amd:epyc_7702_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7662 Firmware
    cpe:2.3:o:amd:epyc_7662_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7642 Firmware3 versions
    cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7552_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
  • AMD/Epyc 7542 Firmware2 versions
    cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
  • AMD/Epyc 7302 Firmware2 versions
    cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
    • cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.g
  • AMD/Epyc 7502 Firmware
    cpe:2.3:o:amd:epyc_7502_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7452 Firmware
    cpe:2.3:o:amd:epyc_7452_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7402 Firmware
    cpe:2.3:o:amd:epyc_7402_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7352 Firmware
    cpe:2.3:o:amd:epyc_7352_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7302p Firmware
    cpe:2.3:o:amd:epyc_7302p_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7262 Firmware
    cpe:2.3:o:amd:epyc_7262_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7252 Firmware
    cpe:2.3:o:amd:epyc_7252_firmware:*:*:*:*:*:*:*:*
    Range: <romepi_1.0.0.g
  • AMD/Epyc 7601 Firmware
    cpe:2.3:o:amd:epyc_7601_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7551p Firmware
    cpe:2.3:o:amd:epyc_7551p_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7551 Firmware
    cpe:2.3:o:amd:epyc_7551_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7501 Firmware
    cpe:2.3:o:amd:epyc_7501_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7451 Firmware
    cpe:2.3:o:amd:epyc_7451_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7401p Firmware
    cpe:2.3:o:amd:epyc_7401p_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7401 Firmware
    cpe:2.3:o:amd:epyc_7401_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7371 Firmware
    cpe:2.3:o:amd:epyc_7371_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7351p Firmware
    cpe:2.3:o:amd:epyc_7351p_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7351 Firmware
    cpe:2.3:o:amd:epyc_7351_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7301 Firmware
    cpe:2.3:o:amd:epyc_7301_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7281 Firmware
    cpe:2.3:o:amd:epyc_7281_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7261 Firmware
    cpe:2.3:o:amd:epyc_7261_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7251 Firmware
    cpe:2.3:o:amd:epyc_7251_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/Epyc 7001 Firmware
    cpe:2.3:o:amd:epyc_7001_firmware:*:*:*:*:*:*:*:*
    Range: <naplespi_1.0.0.k
  • AMD/AMD processorscpe-rescue4 versions
    NaplesPI 1.0.0.K+ 3 more
    • (no CPE)range: NaplesPI 1.0.0.K
    • (no CPE)range: RomePI 1.0.0.G
    • (no CPE)range: MilanPI 1.0.0.B
    • (no CPE)range: GenoaPI 1.0.0.2

Patches

Vulnerability mechanics

References

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News mentions

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