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High 8.6Published Sep 29, 2026

CVE-2026-102730Mounting 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…

Updated under an hour ago ()

Does this affect you?

It affects Eclipse Foundation eclipse-threadx/levelx(NAND driver). Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.12%, higher than 2% of scored CVEs.

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.)

CVSS
8.6 HIGH (v4.0, CNA)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
Weakness (CWE)
CWE-787, CWE-1284
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.12% (percentile 2)
Assigned by
eclipse
NVD analysis
Awaiting Analysis
Record last updated
Sep 29, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Eclipse Foundation eclipse-threadx/levelx(NAND driver)
eclipse_foundation:eclipse_threadx_levelx_nand_driver (from the name)
HEAD `9f1cfdc` and prior; Finding 1 introduced by commit `47b2a17d`; Finding 2 is the un-patched half of the Nov-2025 fix `0f7dd521`.
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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