Public vulnerability disclosure

CVE-2026-102730

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

publishedCWE-787CWE-1284

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`.

Technical severity8.6 highCVSS 4.0 · CNA: eclipse
Published2026-09-29Source updated 2026-11-04
Collected2026-11-042 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Eclipse ThreadX NetX Duo
Eclipse Foundation
HEAD `9f1cfdc` and prior; Finding 1 introduced by commit `47b2a17d`; Finding 2 is the un-patched half of the Nov-2025 fix `0f7dd521`. (affected, custom)
Other versions: unaffected
CNA: eclipse

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 8.6
high
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCNA: eclipse

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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