CVE-2021-46762

CriticalCVSS 9.1/10Last modified Jun 17, 2026

Description

Insufficient input validation in the SMU may allow an attacker to corrupt SMU SRAM potentially leading to a loss of integrity or denial of service.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-20

Affected software

No affected versions have been published.

Timeline

Published
May 9, 2023
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-467637.5Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer poteCVE-2021-467647.5Improper validation of DRAM addresses in SMU may allow an attacker to overwrite sensitive memory locations within the ASP potentially resultCVE-2021-467657.5Insufficient input validation in ASP may allow an attacker with a compromised SMM to induce out-of-bounds memory reads within the ASP, potenCVE-2021-467665.5Improper clearing of sensitive data in the ASP Bootloader may expose secret keys to a privileged attacker accessing ASP SRAM, potentially leCVE-2021-467676.1Insufficient input validation in the ASP may allow an attacker with physical access, unauthorized write access to memory potentially leadingCVE-2021-467685.5Insufficient input validation in SEV firmware may allow an attacker to perform out-of-bounds memory reads within the ASP boot loader, potentCVE-2021-467698.8Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to execute arbitrary DMA copies, which can lead CVE-2021-467717.8Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by CVE-2021-467723.9Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS menu or UEFI shell to tamper with the strucCVE-2021-467738.8Insufficient input validation in ABL may enable a privileged attacker to corrupt ASP memory, potentially resulting in a loss of integrity orCVE-2021-467747.5Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, poCVE-2021-467756.8Improper input validation in ABL may enable an attacker with physical access, to perform arbitrary memory overwrites, potentially leading to
CVE-2021-46762: Critical severity, CVSS 9.1 | Vulnix