{"cve":"CVE-2024-13942","nvd":{"published":"2026-08-19T17:18:21.440","modified":"2026-10-01T23:10:00.233","status":"Deferred","description":"Secure BootROM of RK3588s SoC is vulnerable to a time-of-check to time-of-use attack in case of booting from external media (SPI NOR or NAND, EMMC or SD).\n\n\n\n\nThe code reads the header of the next-stage loader twice. The header contains hashes of the executable modules and is signed with a private key, the public part of which is verified against the SHA256 digest blown in the OTP.\n\n\n\n\nThe first read is only partial and contains only the hashes of the executable modules. The second is complete, including the header signature.\n\nAlthough the header is verified based on the fully read data, the authenticity of the executable modules is checked against the partial data from the first read.\n\n\n\n\nAn attacker with physical access to a device containing RK3588s SoC can easily modify the next-stage loader data on-the-fly using a low-cost SD-card or SPI NOR/NAND or EMMC emulator. Even a simple ultra low-cost circuit comprising two memory chips (containing the same data but different headers - the original and the modified one) and a multiplexer can be used to carry out an attack.\n\n\n\n\nThis can lead to arbitrary code execution with the highest privileges available (EL3). This issue affects RK3588s: RK3588s SoC BootROM (secure) 350B20210512V100 and possibly others.\nAs remediation apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable  https://www.rock-chips.com/a/en/products/RK35_Series/2022/0926/1660.html","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":7.6},"cwes":["CWE-367"],"references":["https://github.com/klsecservices/Advisories/blob/master/KLSA-00230-Rockchip-RK3588s-Secure-BootROM-TOCTOU-vulnerability.md","https://www.rock-chips.com/a/en/products/RK35_Series/2022/0926/1660.html","https://www.rock-chips.com/a/en/psirt/vdp.html"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2024-13942","score":0.00233,"percentile":0.14004,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}