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CVE-2026-102730

Out-of-bounds Write via NAND Metadata Parsing at Mount in LevelX

CVSS 4.0 8.6 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-102730

Published

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`.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-102730

Published

Eclipse ThreadX LevelX

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Eclipse Foundation",
                    "product": "Eclipse ThreadX LevelX",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "HEAD `9f1cfdc` and prior; Finding 1 introduced by commit `47b2a17d`; Finding 2 is   the un-patched half of the Nov-2025 fix `0f7dd521`.",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON