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High severity7.5NVD Advisory· Published May 9, 2023· Updated Jun 17, 2026

CVE-2021-46765

CVE-2021-46765

Description

Insufficient input validation in ASP may allow an attacker with a compromised SMM to induce out-of-bounds memory reads within the ASP, potentially leading to a denial of service.

Affected products

84
  • AMD/Ryzen 3100 Firmware2 versions
    cpe:2.3:o:amd:ryzen_3100_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3100_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3100_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3300x Firmware2 versions
    cpe:2.3:o:amd:ryzen_3300x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3300x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3300x_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3500 Firmware2 versions
    cpe:2.3:o:amd:ryzen_3500_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3500_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3500_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3500x Firmware2 versions
    cpe:2.3:o:amd:ryzen_3500x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3500x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3500x_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3600 Firmware2 versions
    cpe:2.3:o:amd:ryzen_3600_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3600_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3600_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3600x Firmware2 versions
    cpe:2.3:o:amd:ryzen_3600x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3600x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3600x_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3600xt Firmware2 versions
    cpe:2.3:o:amd:ryzen_3600xt_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3600xt_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3600xt_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3800x Firmware2 versions
    cpe:2.3:o:amd:ryzen_3800x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3800x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3800x_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3800xt Firmware2 versions
    cpe:2.3:o:amd:ryzen_3800xt_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3800xt_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3800xt_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3900 Firmware2 versions
    cpe:2.3:o:amd:ryzen_3900_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3900_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3900_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3900x Firmware2 versions
    cpe:2.3:o:amd:ryzen_3900x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3900x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3900x_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3900xt Firmware2 versions
    cpe:2.3:o:amd:ryzen_3900xt_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3900xt_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3900xt_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 3950x Firmware2 versions
    cpe:2.3:o:amd:ryzen_3950x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_3950x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_3950x_firmware:renoirpi-fp6_1.0.0.9:*:*:*:*:*:*:*
  • AMD/Ryzen 5300g Firmware2 versions
    cpe:2.3:o:amd:ryzen_5300g_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5300g_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5300g_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5300ge Firmware2 versions
    cpe:2.3:o:amd:ryzen_5300ge_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5300ge_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5300ge_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5500 Firmware2 versions
    cpe:2.3:o:amd:ryzen_5500_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5500_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5500_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5600 Firmware2 versions
    cpe:2.3:o:amd:ryzen_5600_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5600_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5600_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5600g Firmware2 versions
    cpe:2.3:o:amd:ryzen_5600g_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5600g_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5600g_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5600ge Firmware2 versions
    cpe:2.3:o:amd:ryzen_5600ge_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5600ge_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5600ge_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5600x Firmware2 versions
    cpe:2.3:o:amd:ryzen_5600x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5600x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5600x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5700g Firmware2 versions
    cpe:2.3:o:amd:ryzen_5700g_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5700g_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5700g_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5700ge Firmware2 versions
    cpe:2.3:o:amd:ryzen_5700ge_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5700ge_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5700ge_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5700x Firmware2 versions
    cpe:2.3:o:amd:ryzen_5700x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5700x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5700x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5800 Firmware2 versions
    cpe:2.3:o:amd:ryzen_5800_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5800_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5800_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5800x3d Firmware2 versions
    cpe:2.3:o:amd:ryzen_5800x3d_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5800x3d_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5800x3d_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5800x Firmware2 versions
    cpe:2.3:o:amd:ryzen_5800x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5800x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5800x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5900 Firmware2 versions
    cpe:2.3:o:amd:ryzen_5900_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5900_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5900_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5900x Firmware2 versions
    cpe:2.3:o:amd:ryzen_5900x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5900x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5900x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5945wx Firmware2 versions
    cpe:2.3:o:amd:ryzen_5945wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5945wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5945wx_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5950x Firmware2 versions
    cpe:2.3:o:amd:ryzen_5950x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5950x_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5950x_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5955wx Firmware2 versions
    cpe:2.3:o:amd:ryzen_5955wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5955wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5955wx_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5965wx Firmware2 versions
    cpe:2.3:o:amd:ryzen_5965wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5965wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5965wx_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5975wx Firmware2 versions
    cpe:2.3:o:amd:ryzen_5975wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5975wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5975wx_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 5995wx Firmware2 versions
    cpe:2.3:o:amd:ryzen_5995wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:amd:ryzen_5995wx_firmware:cezannepi-fp6_1.0.0.b:*:*:*:*:*:*:*
    • cpe:2.3:o:amd:ryzen_5995wx_firmware:comboam4v2_pi_1.2.0.8:*:*:*:*:*:*:*
  • AMD/Ryzen 6600h Firmware
    cpe:2.3:o:amd:ryzen_6600h_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6600hs Firmware
    cpe:2.3:o:amd:ryzen_6600hs_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6600u Firmware
    cpe:2.3:o:amd:ryzen_6600u_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6800h Firmware
    cpe:2.3:o:amd:ryzen_6800h_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6800hs Firmware
    cpe:2.3:o:amd:ryzen_6800hs_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6800u Firmware
    cpe:2.3:o:amd:ryzen_6800u_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6900hs Firmware
    cpe:2.3:o:amd:ryzen_6900hs_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6900hx Firmware
    cpe:2.3:o:amd:ryzen_6900hx_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6980hs Firmware
    cpe:2.3:o:amd:ryzen_6980hs_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/Ryzen 6980hx Firmware
    cpe:2.3:o:amd:ryzen_6980hx_firmware:rembrandtpi-fp7_1.0.0.5:*:*:*:*:*:*:*
  • AMD/ASPllm-fuzzy
  • AMD/Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”v5
    Range: various
  • AMD/Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4v5
    Range: various
  • AMD/Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”v5
    Range: various
  • AMD/Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”v5
    Range: various
  • AMD/Ryzen™ 6000 Series Mobile Processors "Rembrandt"v5
    Range: various

Patches

Vulnerability mechanics

References

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News mentions

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