{"id":"CVE-2024-38433","aliases":["EUVD-2024-37325","GHSA-jx2p-c252-qcmr"],"status":"published","title":"Nuvoton - CWE-305: Authentication Bypass by Primary Weakness","description":"Nuvoton - CWE-305: Authentication Bypass by Primary Weakness\n\nAn attacker with write access to the SPI-Flash on an NPCM7xx BMC subsystem that uses the Nuvoton BootBlock\n\nreference code can modify the u-boot image header on flash parsed by the BootBlock which could lead to arbitrary code\n\nexecution.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00198,"percentile":0.09526,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-305"],"published":"2024-07-11T07:50:45Z","modified":"2026-06-17T07:40:16Z","products":[{"vendor":"nuvoton","product":"npcm705r_firmware"},{"vendor":"nuvoton","product":"npcm710r_firmware"},{"vendor":"nuvoton","product":"npcm730r_firmware"},{"vendor":"nuvoton","product":"npcm750r_firmware"},{"vendor":"nuvoton","product":"npcm7xx (poleg) bootblock"},{"vendor":"nuvoton","product":"npcm7xx_firmware"}],"references":[{"url":"https://www.gov.il/en/Departments/faq/cve_advisories","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38433"},{"url":"https://github.com/advisories/GHSA-jx2p-c252-qcmr"}],"sources":{"cve":[{"id":"CVE-2024-38433","title":"Nuvoton - CWE-305: Authentication Bypass by Primary Weakness","description":"Nuvoton - CWE-305: Authentication Bypass by Primary Weakness\n\nAn attacker with write access to the SPI-Flash on an NPCM7xx BMC subsystem that uses the Nuvoton BootBlock\n\nreference code can modify the u-boot image header on flash parsed by the BootBlock which could lead to arbitrary code\n\nexecution.","status":"published","published":"2024-07-11T07:50:45.579Z","modified":"2024-08-02T04:12:24.827Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-305"],"updated_at":"2026-11-02T14:34:16.367792Z"}],"euvd":[{"id":"EUVD-2024-37325","description":"Nuvoton - CWE-305: Authentication Bypass by Primary Weakness\n\nAn attacker with write access to the SPI-Flash on an NPCM7xx BMC subsystem that uses the Nuvoton BootBlock\n\nreference code can modify the u-boot image header on flash parsed by the BootBlock which could lead to arbitrary code\n\nexecution.","status":"published","published":"2024-07-11T07:50:45Z","modified":"2024-08-02T04:12:24Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-03T03:50:18.901913Z"}],"ghsa":[{"id":"GHSA-jx2p-c252-qcmr","title":"Nuvoton - CWE-305: Authentication Bypass by Primary Weakness\n\nAn attacker with write access to...","description":"Nuvoton - CWE-305: Authentication Bypass by Primary Weakness\n\nAn attacker with write access to the SPI-Flash on an NPCM7xx BMC subsystem that uses the Nuvoton BootBlock\n\nreference code can modify the u-boot image header on flash parsed by the BootBlock which could lead to arbitrary code\n\nexecution.","status":"published","published":"2024-07-11T09:30:58Z","modified":"2024-07-15T18:31:16Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-287","CWE-305"],"updated_at":"2026-11-02T14:57:41.954948Z"}],"nvd":[{"id":"CVE-2024-38433","description":"Nuvoton - CWE-305: Authentication Bypass by Primary Weakness\n\nAn attacker with write access to the SPI-Flash on an NPCM7xx BMC subsystem that uses the Nuvoton BootBlock\n\nreference code can modify the u-boot image header on flash parsed by the BootBlock which could lead to arbitrary code\n\nexecution.","status":"published","published":"2024-07-11T08:15:10.623Z","modified":"2026-06-17T07:40:16.273Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-305","CWE-287"],"updated_at":"2026-11-02T14:10:12.016585Z"}]}}