Medium severity5.5NVD Advisory· Published May 9, 2023· Updated Jun 17, 2026

CVE-2021-26371

Description

A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in exposure of ASP memory to userspace, potentially leading to information disclosure.

Affected products

142

AMD/Amd 3015ce Firmware
cpe:2.3:o:amd:amd_3015ce_firmware:*:*:*:*:*:*:*:*
Range: <pollockpi-ft5_1.0.0.3
AMD/Amd 3015e Firmware
cpe:2.3:o:amd:amd_3015e_firmware:*:*:*:*:*:*:*:*
Range: <pollockpi-ft5_1.0.0.3
AMD/Epyc 7001 Firmware
cpe:2.3:o:amd:epyc_7001_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7002 Firmware
cpe:2.3:o:amd:epyc_7002_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7003 Firmware
cpe:2.3:o:amd:epyc_7003_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7642 Firmware3 versions
cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7552_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
AMD/Epyc 7251 Firmware
cpe:2.3:o:amd:epyc_7251_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7252 Firmware
cpe:2.3:o:amd:epyc_7252_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7261 Firmware
cpe:2.3:o:amd:epyc_7261_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7262 Firmware
cpe:2.3:o:amd:epyc_7262_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7742 Firmware4 versions
cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7402p_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7702p_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
AMD/Epyc 7281 Firmware
cpe:2.3:o:amd:epyc_7281_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7542 Firmware2 versions
cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
AMD/Epyc 72f3 Firmware
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7301 Firmware
cpe:2.3:o:amd:epyc_7301_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7302 Firmware2 versions
cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
AMD/Epyc 7302p Firmware
cpe:2.3:o:amd:epyc_7302p_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7313 Firmware
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7313p Firmware
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7343 Firmware
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7351 Firmware
cpe:2.3:o:amd:epyc_7351_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7351p Firmware
cpe:2.3:o:amd:epyc_7351p_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7352 Firmware
cpe:2.3:o:amd:epyc_7352_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7371 Firmware
cpe:2.3:o:amd:epyc_7371_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7373x Firmware
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 73f3 Firmware
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7401 Firmware
cpe:2.3:o:amd:epyc_7401_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7401p Firmware
cpe:2.3:o:amd:epyc_7401p_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7402 Firmware
cpe:2.3:o:amd:epyc_7402_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7413 Firmware
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7443 Firmware
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7443p Firmware
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7451 Firmware
cpe:2.3:o:amd:epyc_7451_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7452 Firmware
cpe:2.3:o:amd:epyc_7452_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7453 Firmware
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7473x Firmware
cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 74f3 Firmware
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7501 Firmware
cpe:2.3:o:amd:epyc_7501_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7502 Firmware
cpe:2.3:o:amd:epyc_7502_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7513 Firmware
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7f32 Firmware3 versions
cpe:2.3:o:amd:epyc_7532_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:amd:epyc_7532_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7f32_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
- cpe:2.3:o:amd:epyc_7h12_firmware:*:*:*:*:*:*:*:*range: <romepi_1.0.0.d
AMD/Epyc 7543 Firmware
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7543p Firmware
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7551 Firmware
cpe:2.3:o:amd:epyc_7551_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7551p Firmware
cpe:2.3:o:amd:epyc_7551p_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7573x Firmware
cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 75f3 Firmware
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7601 Firmware
cpe:2.3:o:amd:epyc_7601_firmware:*:*:*:*:*:*:*:*
Range: <naplespi_1.0.0.h
AMD/Epyc 7643 Firmware
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7662 Firmware
cpe:2.3:o:amd:epyc_7662_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7663 Firmware
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7702 Firmware
cpe:2.3:o:amd:epyc_7702_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7713 Firmware
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7713p Firmware
cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7763 Firmware
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7773x Firmware
cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.6
AMD/Epyc 7f52 Firmware
cpe:2.3:o:amd:epyc_7f52_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Epyc 7f72 Firmware
cpe:2.3:o:amd:epyc_7f72_firmware:*:*:*:*:*:*:*:*
Range: <romepi_1.0.0.d
AMD/Ryzen 3 2200g Firmware
cpe:2.3:o:amd:ryzen_3_2200g_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 2200ge Firmware
cpe:2.3:o:amd:ryzen_3_2200ge_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 2200u Firmware
cpe:2.3:o:amd:ryzen_3_2200u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 2300u Firmware
cpe:2.3:o:amd:ryzen_3_2300u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 5600u Firmware
cpe:2.3:o:amd:ryzen_3_3100_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3200u Firmware2 versions
cpe:2.3:o:amd:ryzen_3_3200u_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:ryzen_3_3200u_firmware:*:*:*:*:*:*:*:*range: <picassopi-fp5_1.0.0.d
- cpe:2.3:o:amd:ryzen_3_3300u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3250c Firmware
cpe:2.3:o:amd:ryzen_3_3250c_firmware:*:*:*:*:*:*:*:*
Range: <picassopi-fp5_1.0.0.d
AMD/Ryzen 3 3250u Firmware2 versions
cpe:2.3:o:amd:ryzen_3_3250u_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:ryzen_3_3250u_firmware:*:*:*:*:*:*:*:*range: <picassopi-fp5_1.0.0.d
- cpe:2.3:o:amd:ryzen_7_3800xt_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3300x Firmware
cpe:2.3:o:amd:ryzen_3_3300x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 3350u Firmware
cpe:2.3:o:amd:ryzen_3_3350u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 Pro 2100ge Firmware
cpe:2.3:o:amd:ryzen_3_pro_2100ge_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 2400g Firmware
cpe:2.3:o:amd:ryzen_5_2400g_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 2400ge Firmware
cpe:2.3:o:amd:ryzen_5_2400ge_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 3 5425u Firmware2 versions
cpe:2.3:o:amd:ryzen_5_2500u_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:ryzen_5_2500u_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_3700u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 2600h Firmware
cpe:2.3:o:amd:ryzen_5_2600h_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3450u Firmware
cpe:2.3:o:amd:ryzen_5_3450u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3500 Firmware
cpe:2.3:o:amd:ryzen_5_3500_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3500c Firmware
cpe:2.3:o:amd:ryzen_5_3500c_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3500u Firmware
cpe:2.3:o:amd:ryzen_5_3500u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3500x Firmware
cpe:2.3:o:amd:ryzen_5_3500x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3550h Firmware
cpe:2.3:o:amd:ryzen_5_3550h_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 5625u Firmware
cpe:2.3:o:amd:ryzen_5_3580u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3600 Firmware
cpe:2.3:o:amd:ryzen_5_3600_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3600x Firmware
cpe:2.3:o:amd:ryzen_5_3600x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 3600xt Firmware
cpe:2.3:o:amd:ryzen_5_3600xt_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 5500 Firmware
cpe:2.3:o:amd:ryzen_5_5500_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 5600 Firmware
cpe:2.3:o:amd:ryzen_5_5600_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 5 5600x Firmware
cpe:2.3:o:amd:ryzen_5_5600x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 Pro 3700u Firmware
cpe:2.3:o:amd:ryzen_7_2700u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 2800h Firmware
cpe:2.3:o:amd:ryzen_7_2800h_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 3700c Firmware
cpe:2.3:o:amd:ryzen_7_3700c_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 3700x Firmware
cpe:2.3:o:amd:ryzen_7_3700x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 3750h Firmware
cpe:2.3:o:amd:ryzen_7_3750h_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 3780u Firmware
cpe:2.3:o:amd:ryzen_7_3780u_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 3800x Firmware
cpe:2.3:o:amd:ryzen_7_3800x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 5700x Firmware
cpe:2.3:o:amd:ryzen_7_5700x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 5800 Firmware
cpe:2.3:o:amd:ryzen_7_5800_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 5800x3d Firmware
cpe:2.3:o:amd:ryzen_7_5800x3d_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 7 5800x Firmware
cpe:2.3:o:amd:ryzen_7_5800x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 9 3900 Firmware
cpe:2.3:o:amd:ryzen_9_3900_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 9 3900x Firmware
cpe:2.3:o:amd:ryzen_9_3900x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 9 3900xt Firmware
cpe:2.3:o:amd:ryzen_9_3900xt_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 9 3950x Firmware
cpe:2.3:o:amd:ryzen_9_3950x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 9 5900 Firmware
cpe:2.3:o:amd:ryzen_9_5900_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 9 5900x Firmware
cpe:2.3:o:amd:ryzen_9_5900x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen 9 5950x Firmware
cpe:2.3:o:amd:ryzen_9_5950x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper 3960x Firmware
cpe:2.3:o:amd:ryzen_threadripper_3960x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper 3970x Firmware
cpe:2.3:o:amd:ryzen_threadripper_3970x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper 3990x Firmware
cpe:2.3:o:amd:ryzen_threadripper_3990x_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper Pro 3945wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3945wx_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper Pro 3955wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3955wx_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper Pro 3975wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3975wx_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper Pro 3995wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_3995wx_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper Pro 5945wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5945wx_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper Pro 5955wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5955wx_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper Pro 5965wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5965wx_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper Pro 5975wx Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5975wx_firmware:-:*:*:*:*:*:*:*
AMD/Ryzen Threadripper 2920x Firmware
cpe:2.3:o:amd:ryzen_threadripper_pro_5995wx_firmware:-:*:*:*:*:*:*:*
AMD/bootloaderllm-fuzzy
AMD/EPYC Processorscpe-rescue3 versions
various + 2 more
- (no CPE)range: various
- (no CPE)range: various
- (no CPE)range: various
AMD/3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDTv5
Range: various
AMD/AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4v5
Range: various
AMD/Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”v5
Range: various
AMD/Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULPv5
Range: various
AMD/Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4v5
Range: various
AMD/Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5v5
Range: various
AMD/Ryzen™ 3000 Series Desktop Processors “Matisse” AM4v5
Range: various
AMD/Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”v5
Range: various
AMD/Ryzen™ Threadripper™ PRO Processors “Castle Peak” WSv5
Range: various
AMD/Ryzen™ Threadripper™ PRO Processors “Chagall” WSv5
Range: various

Patches

Vulnerability mechanics

References

www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001nvdVendor Advisory
www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001nvdVendor Advisory

News mentions

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cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000