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    Dashboard / CVE / CVE-2023-20521

    CVE-2023-20521

    TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.

    Published:Nov 14, 2023
    Last Modified:Nov 21, 2024
    EPS:Nov 14, 2023
    EPSS Score:0.00037
    CVSS Score:3.3

    Affected Products

    Vendor
    Amd
    Product
    Amd 3015ce
    Vendor
    Amd
    Product
    Amd 3015ce Firmware
    Vendor
    Amd
    Product
    Amd 3015e
    Vendor
    Amd
    Product
    Amd 3015e Firmware
    Vendor
    Amd
    Product
    Athlon Gold 3150g
    Vendor
    Amd
    Product
    Athlon Gold 3150g Firmware
    Vendor
    Amd
    Product
    Athlon Gold Pro 3150g
    Vendor
    Amd
    Product
    Athlon Gold Pro 3150g Firmware
    Vendor
    Amd
    Product
    Athlon Gold Pro 3150ge
    Vendor
    Amd
    Product
    Athlon Gold Pro 3150ge Firmware
    Vendor
    Amd
    Product
    Athlon Pro 300ge
    Vendor
    Amd
    Product
    Athlon Pro 300ge Firmware
    Vendor
    Amd
    Product
    Epyc 7001
    Vendor
    Amd
    Product
    Epyc 7001 Firmware
    Vendor
    Amd
    Product
    Epyc 7203
    Vendor
    Amd
    Product
    Epyc 7203 Firmware
    Vendor
    Amd
    Product
    Epyc 7203p
    Vendor
    Amd
    Product
    Epyc 7203p Firmware
    Vendor
    Amd
    Product
    Epyc 7232p
    Vendor
    Amd
    Product
    Epyc 7232p Firmware
    Vendor
    Amd
    Product
    Epyc 7251
    Vendor
    Amd
    Product
    Epyc 7251 Firmware
    Vendor
    Amd
    Product
    Epyc 7252
    Vendor
    Amd
    Product
    Epyc 7252 Firmware
    Vendor
    Amd
    Product
    Epyc 7261
    Vendor
    Amd
    Product
    Epyc 7261 Firmware
    Vendor
    Amd
    Product
    Epyc 7262
    Vendor
    Amd
    Product
    Epyc 7262 Firmware
    Vendor
    Amd
    Product
    Epyc 7272
    Vendor
    Amd
    Product
    Epyc 7272 Firmware
    Vendor
    Amd
    Product
    Epyc 7281
    Vendor
    Amd
    Product
    Epyc 7281 Firmware
    Vendor
    Amd
    Product
    Epyc 7282
    Vendor
    Amd
    Product
    Epyc 7282 Firmware
    Vendor
    Amd
    Product
    Epyc 72f3
    Vendor
    Amd
    Product
    Epyc 72f3 Firmware
    Vendor
    Amd
    Product
    Epyc 7301
    Vendor
    Amd
    Product
    Epyc 7301 Firmware
    Vendor
    Amd
    Product
    Epyc 7302
    Vendor
    Amd
    Product
    Epyc 7302 Firmware
    Vendor
    Amd
    Product
    Epyc 7302p
    Vendor
    Amd
    Product
    Epyc 7302p Firmware
    Vendor
    Amd
    Product
    Epyc 7303
    Vendor
    Amd
    Product
    Epyc 7303 Firmware
    Vendor
    Amd
    Product
    Epyc 7303p
    Vendor
    Amd
    Product
    Epyc 7303p Firmware
    Vendor
    Amd
    Product
    Epyc 7313
    Vendor
    Amd
    Product
    Epyc 7313 Firmware
    Vendor
    Amd
    Product
    Epyc 7313p
    Vendor
    Amd
    Product
    Epyc 7313p Firmware
    Vendor
    Amd
    Product
    Epyc 7343
    Vendor
    Amd
    Product
    Epyc 7343 Firmware
    Vendor
    Amd
    Product
    Epyc 7351
    Vendor
    Amd
    Product
    Epyc 7351 Firmware
    Vendor
    Amd
    Product
    Epyc 7351p
    Vendor
    Amd
    Product
    Epyc 7351p Firmware
    Vendor
    Amd
    Product
    Epyc 7352
    Vendor
    Amd
    Product
    Epyc 7352 Firmware
    Vendor
    Amd
    Product
    Epyc 7371
    Vendor
    Amd
    Product
    Epyc 7371 Firmware
    Vendor
    Amd
    Product
    Epyc 7373x
    Vendor
    Amd
    Product
    Epyc 7373x Firmware
    Vendor
    Amd
    Product
    Epyc 73f3
    Vendor
    Amd
    Product
    Epyc 73f3 Firmware
    Vendor
    Amd
    Product
    Epyc 7401
    Vendor
    Amd
    Product
    Epyc 7401 Firmware
    Vendor
    Amd
    Product
    Epyc 7401p
    Vendor
    Amd
    Product
    Epyc 7401p Firmware
    Vendor
    Amd
    Product
    Epyc 7402
    Vendor
    Amd
    Product
    Epyc 7402 Firmware
    Vendor
    Amd
    Product
    Epyc 7402p
    Vendor
    Amd
    Product
    Epyc 7402p Firmware
    Vendor
    Amd
    Product
    Epyc 7413
    Vendor
    Amd
    Product
    Epyc 7413 Firmware
    Vendor
    Amd
    Product
    Epyc 7443
    Vendor
    Amd
    Product
    Epyc 7443 Firmware
    Vendor
    Amd
    Product
    Epyc 7443p
    Vendor
    Amd
    Product
    Epyc 7443p Firmware
    Vendor
    Amd
    Product
    Epyc 7451
    Vendor
    Amd
    Product
    Epyc 7451 Firmware
    Vendor
    Amd
    Product
    Epyc 7452
    Vendor
    Amd
    Product
    Epyc 7452 Firmware
    Vendor
    Amd
    Product
    Epyc 7453
    Vendor
    Amd
    Product
    Epyc 7453 Firmware
    Vendor
    Amd
    Product
    Epyc 7473x
    Vendor
    Amd
    Product
    Epyc 7473x Firmware
    Vendor
    Amd
    Product
    Epyc 74f3
    Vendor
    Amd
    Product
    Epyc 74f3 Firmware
    Vendor
    Amd
    Product
    Epyc 7501
    Vendor
    Amd
    Product
    Epyc 7501 Firmware
    Vendor
    Amd
    Product
    Epyc 7502
    Vendor
    Amd
    Product
    Epyc 7502 Firmware
    Vendor
    Amd
    Product
    Epyc 7502p
    Vendor
    Amd
    Product
    Epyc 7502p Firmware
    Vendor
    Amd
    Product
    Epyc 7513
    Vendor
    Amd
    Product
    Epyc 7513 Firmware
    Vendor
    Amd
    Product
    Epyc 7532
    Vendor
    Amd
    Product
    Epyc 7532 Firmware
    Vendor
    Amd
    Product
    Epyc 7542
    Vendor
    Amd
    Product
    Epyc 7542 Firmware
    Vendor
    Amd
    Product
    Epyc 7543
    Vendor
    Amd
    Product
    Epyc 7543 Firmware
    Vendor
    Amd
    Product
    Epyc 7543p
    Vendor
    Amd
    Product
    Epyc 7543p Firmware
    Vendor
    Amd
    Product
    Epyc 7551
    Vendor
    Amd
    Product
    Epyc 7551 Firmware
    Vendor
    Amd
    Product
    Epyc 7551p
    Vendor
    Amd
    Product
    Epyc 7551p Firmware
    Vendor
    Amd
    Product
    Epyc 7552
    Vendor
    Amd
    Product
    Epyc 7552 Firmware
    Vendor
    Amd
    Product
    Epyc 7573x
    Vendor
    Amd
    Product
    Epyc 7573x Firmware
    Vendor
    Amd
    Product
    Epyc 75f3
    Vendor
    Amd
    Product
    Epyc 75f3 Firmware
    Vendor
    Amd
    Product
    Epyc 7601
    Vendor
    Amd
    Product
    Epyc 7601 Firmware
    Vendor
    Amd
    Product
    Epyc 7642
    Vendor
    Amd
    Product
    Epyc 7642 Firmware
    Vendor
    Amd
    Product
    Epyc 7643
    Vendor
    Amd
    Product
    Epyc 7643 Firmware
    Vendor
    Amd
    Product
    Epyc 7643p
    Vendor
    Amd
    Product
    Epyc 7643p Firmware
    Vendor
    Amd
    Product
    Epyc 7662
    Vendor
    Amd
    Product
    Epyc 7662 Firmware
    Vendor
    Amd
    Product
    Epyc 7663
    Vendor
    Amd
    Product
    Epyc 7663 Firmware
    Vendor
    Amd
    Product
    Epyc 7663p
    Vendor
    Amd
    Product
    Epyc 7663p Firmware
    Vendor
    Amd
    Product
    Epyc 7702
    Vendor
    Amd
    Product
    Epyc 7702 Firmware
    Vendor
    Amd
    Product
    Epyc 7702p
    Vendor
    Amd
    Product
    Epyc 7702p Firmware
    Vendor
    Amd
    Product
    Epyc 7713
    Vendor
    Amd
    Product
    Epyc 7713 Firmware
    Vendor
    Amd
    Product
    Epyc 7713p
    Vendor
    Amd
    Product
    Epyc 7713p Firmware
    Vendor
    Amd
    Product
    Epyc 7742
    Vendor
    Amd
    Product
    Epyc 7742 Firmware
    Vendor
    Amd
    Product
    Epyc 7763
    Vendor
    Amd
    Product
    Epyc 7763 Firmware
    Vendor
    Amd
    Product
    Epyc 7773x
    Vendor
    Amd
    Product
    Epyc 7773x Firmware
    Vendor
    Amd
    Product
    Epyc 7f32
    Vendor
    Amd
    Product
    Epyc 7f32 Firmware
    Vendor
    Amd
    Product
    Epyc 7f52
    Vendor
    Amd
    Product
    Epyc 7f52 Firmware
    Vendor
    Amd
    Product
    Epyc 7f72
    Vendor
    Amd
    Product
    Epyc 7f72 Firmware
    Vendor
    Amd
    Product
    Epyc 7h12
    Vendor
    Amd
    Product
    Epyc 7h12 Firmware
    Vendor
    Amd
    Product
    Ryzen 3 3200u
    Vendor
    Amd
    Product
    Ryzen 3 3200u Firmware
    Vendor
    Amd
    Product
    Ryzen 3 3250c
    Vendor
    Amd
    Product
    Ryzen 3 3250c Firmware
    Vendor
    Amd
    Product
    Ryzen 3 3250u
    Vendor
    Amd
    Product
    Ryzen 3 3250u Firmware
    Vendor
    Amd
    Product
    Ryzen 3 3300u
    Vendor
    Amd
    Product
    Ryzen 3 3300u Firmware
    Vendor
    Amd
    Product
    Ryzen 3 3350u
    Vendor
    Amd
    Product
    Ryzen 3 3350u Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3450u
    Vendor
    Amd
    Product
    Ryzen 5 3450u Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3500c
    Vendor
    Amd
    Product
    Ryzen 5 3500c Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3500u
    Vendor
    Amd
    Product
    Ryzen 5 3500u Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3550h
    Vendor
    Amd
    Product
    Ryzen 5 3550h Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3580u
    Vendor
    Amd
    Product
    Ryzen 5 3580u Firmware
    Vendor
    Amd
    Product
    Ryzen 7 3700c
    Vendor
    Amd
    Product
    Ryzen 7 3700c Firmware
    Vendor
    Amd
    Product
    Ryzen 7 3700u
    Vendor
    Amd
    Product
    Ryzen 7 3700u Firmware
    Vendor
    Amd
    Product
    Ryzen 7 3750h
    Vendor
    Amd
    Product
    Ryzen 7 3750h Firmware
    Vendor
    Amd
    Product
    Ryzen 7 3780u
    Vendor
    Amd
    Product
    Ryzen 7 3780u Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 2920x
    Vendor
    Amd
    Product
    Ryzen Threadripper 2920x Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 2950x
    Vendor
    Amd
    Product
    Ryzen Threadripper 2950x Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 2970wx
    Vendor
    Amd
    Product
    Ryzen Threadripper 2970wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 2990wx
    Vendor
    Amd
    Product
    Ryzen Threadripper 2990wx Firmware

    Exploits

    No exploit reference

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High