CVE-2021-26354

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

Insufficient bounds checking in ASP may allow an attacker to issue a system call from a compromised ABL which may cause arbitrary memory values to be initialized to zero, potentially leading to a loss of integrity.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-120

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-2021-263555.5Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid message port registers that could result in CVE-2021-263567.4A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data c CVE-2021-263607.8An attacker with local access to the system can make unauthorized modifications of the security configuration of the SOC registers. This cou CVE-2021-263615.5A malicious or compromised User Application (UApp) or AGESA Boot Loader (ABL) could be used by an attacker to exfiltrate arbitrary memory fr CVE-2021-263627.1A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call which results in mapping sensitive System CVE-2021-263634.4A malicious or compromised UApp or ABL could potentially change the value that the ASP uses for its reserved DRAM, to one outside of the fen CVE-2021-263645.5Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read outside of the SRAM address range which CVE-2021-263658.2Certain size values in firmware binary headers could trigger out of bounds reads during signature validation, leading to denial of service o CVE-2021-263667.1An attacker, who gained elevated privileges via some other vulnerability, may be able to read data from Boot ROM resulting in a loss of syst CVE-2021-263676.0A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address ran CVE-2021-263684.4Insufficient check of the process type in Trusted OS (TOS) may allow an attacker with privileges to enable a lesser privileged process to un CVE-2021-263697.8A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bou