{"id":"CVE-2026-102730","aliases":["EUVD-2026-89201","GHSA-g54v-9g2q-gvrg"],"status":"published","title":"Out-of-bounds Write via NAND Metadata Parsing at Mount in LevelX","description":"Mounting an attacker-controlled NAND flash image (`lx_nand_flash_open()`) triggers an unbounded out-of-bounds heap **write** in LevelX's NAND flash-translation-layer metadata parser that overwrites a driver function pointer in the control block, giving a demonstrated control-flow hijack — RIP set to a full 8-byte attacker-chosen value (register-verified). Two accompanying OOB reads. All reproduced verbatim under ASan at HEAD `9f1cfdc`.","severity":{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00117,"percentile":0.01655,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1284","CWE-787"],"published":"2026-09-29T17:59:30Z","modified":"2026-11-10T14:53:43Z","products":[{"vendor":"eclipse foundation","product":"eclipse threadx levelx"}],"references":[{"url":"https://github.com/eclipse-threadx/levelx/security/advisories/GHSA-q6ph-7238-777g"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102730"},{"url":"https://github.com/advisories/GHSA-g54v-9g2q-gvrg"}],"sources":{"cve":[{"id":"CVE-2026-102730","title":"Out-of-bounds Write via NAND Metadata Parsing at Mount in LevelX","description":"Mounting an attacker-controlled NAND flash image (`lx_nand_flash_open()`) triggers an unbounded out-of-bounds heap **write** in LevelX's NAND flash-translation-layer metadata parser that overwrites a driver function pointer in the control block, giving a demonstrated control-flow hijack — RIP set to a full 8-byte attacker-chosen value (register-verified). Two accompanying OOB reads. All reproduced verbatim under ASan at HEAD `9f1cfdc`.","status":"published","published":"2026-09-29T17:59:30.553Z","modified":"2026-11-10T14:53:43.542Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-787","CWE-1284"],"updated_at":"2026-11-10T15:39:10.800702Z"}],"euvd":[{"id":"EUVD-2026-89201","description":"Mounting an attacker-controlled NAND flash image (`lx_nand_flash_open()`) triggers an unbounded out-of-bounds heap **write** in LevelX's NAND flash-translation-layer metadata parser that overwrites a driver function pointer in the control block, giving a demonstrated control-flow hijack — RIP set to a full 8-byte attacker-chosen value (register-verified). Two accompanying OOB reads. All reproduced verbatim under ASan at HEAD `9f1cfdc`.","status":"published","published":"2026-09-29T17:59:30Z","modified":"2026-11-10T14:53:43Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-10T16:21:32.397558Z"}],"ghsa":[{"id":"GHSA-g54v-9g2q-gvrg","title":"Mounting an attacker-controlled NAND flash image (`lx_nand_flash_open()`) triggers an unbounded...","description":"Mounting an attacker-controlled NAND flash image (`lx_nand_flash_open()`) triggers an unbounded out-of-bounds heap **write** in LevelX's NAND flash-translation-layer metadata parser that overwrites a driver function pointer in the control block, giving a demonstrated control-flow hijack — RIP set to a full 8-byte attacker-chosen value (register-verified). Two accompanying OOB reads. All reproduced verbatim under ASan at HEAD `9f1cfdc`. (The affected metadata-parser header states \"Some portions generated by Copilot (Sonnet 4.6)\" — an AI-generated parser with an unchecked on-flash count.)","status":"published","published":"2026-09-29T18:32:04Z","modified":"2026-09-29T18:32:09Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:12:33.840327Z"}],"nvd":[{"id":"CVE-2026-102730","description":"Mounting an attacker-controlled NAND flash image (`lx_nand_flash_open()`) triggers an unbounded out-of-bounds heap **write** in LevelX's NAND flash-translation-layer metadata parser that overwrites a driver function pointer in the control block, giving a demonstrated control-flow hijack — RIP set to a full 8-byte attacker-chosen value (register-verified). Two accompanying OOB reads. All reproduced verbatim under ASan at HEAD `9f1cfdc`.","status":"published","published":"2026-09-29T18:17:12.77Z","modified":"2026-11-10T15:17:11.01Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-787","CWE-1284"],"updated_at":"2026-11-10T18:20:07.935887Z"}]}}