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Back to active CVEs
High · CVSS 8.6CVE-2026-102730

Out-of-bounds Write via NAND Metadata Parsing at Mount in LevelXCVE-2026-102730

Answer in brief

CVE-2026-102730 records a High severity (CVSS 8.6) vulnerability in Out-of-bounds Write via NAND Metadata Parsing at Mount in LevelX. The current sources do not mark it as known exploited. The current feed maps Eclipse Foundation/eclipse-threadx/levelx(NAND driver) (generic), Eclipse Foundation/Eclipse ThreadX NetX Duo (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 29, 2026Updated Nov 4, 2026Source checked Nov 4, 2026First seen by HOL Sep 29, 2026Material review Nov 4, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.6
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Eclipse Foundation/eclipse-threadx/levelx(NAND driver) (generic), Eclipse Foundation/Eclipse ThreadX NetX Duo (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Eclipse Foundation/eclipse-threadx/levelx(NAND driver)genericHEAD `9f1cfdc` and prior; Finding 1 introduced by commit `47b2a17d`; Finding 2 is the un-patched half of the Nov-2025 fix `0f7dd521`.Not reported
Eclipse Foundation/Eclipse ThreadX NetX DuogenericHEAD `9f1cfdc` and prior; Finding 1 introduced by commit `47b2a17d`; Finding 2 is the un-patched half of the Nov-2025 fix `0f7dd521`.Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Eclipse Foundation/eclipse-threadx/levelx(NAND driver), Eclipse Foundation/Eclipse ThreadX NetX Duo.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 29, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
Upstream source 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`.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache OpenOffice: Heap out-of-bounds write in WW8 PLCF readerAlso CWE-787
  • Apache OpenOffice: PDF File Parsing Heap based Buffer-Overflow-Remote Code Execution VulnerabilityAlso CWE-787
  • Apache OpenOffice: Out-of-bounds write when importing encrypted PDF filesAlso CWE-787
  • Apache OpenOffice: Out of bounds memory access during WMF importAlso CWE-787
  • Apache OpenOffice: Out-of-bounds write when importing encrypted PDF filesAlso CWE-787

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-787, CWE-1284
Source
CVE List V5
Source checked
Nov 4, 2026
References
1 linked source
Open source record