CVSS 3.1 Score 9.1 of 10 (high)


Published Dec 15, 2023
Updated: Dec 19, 2023


CVE-2023-4020 is a cyber vulnerability that affects multiple products, including o7SxFB, o7SxFD, o7SxFC, and others. The vulnerability allows the reading and writing of memory in the secure region from the non-secure region of memory in Silicon Labs TrustZone implementation. The risk score for this vulnerability is 65, indicating a high level of danger. To remediate the vulnerability, it is important to validate input and ensure proper input validation is implemented. This vulnerability poses a critical threat to organizations as it can be exploited remotely without requiring any user interaction, potentially leading to high impact on integrity and confidentiality.

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