CVSS 3.1 Score 5.7 of 10 (medium)


Published Nov 14, 2023
Updated: Feb 13, 2024
CWE ID 367


CVE-2023-20521 is a vulnerability that affects the ASP Bootloader. It is a Time-of-Check to Time-of-Use (TOCTOU) vulnerability, which means that an attacker with physical access can tamper with SPI ROM records after memory content verification. This vulnerability has the potential to result in a loss of confidentiality or a denial of service. The affected products include pu8xr4, r_dIt8, pu8xr7, pu8xr6, and many others. To remediate this vulnerability, organizations should ensure that physical access to the ASP Bootloader is restricted and implement proper security measures to protect against unauthorized tampering. The CVE has a base severity rating of MEDIUM and a base score of 5.7 according to the National Vulnerability Database (NVD).

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