OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the…
Priority LOW 35CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString function at /moddable/xs/sources/xsSymbol.c.
Why it matters now
EPSS 0.00755 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-29326
- 2026-10-03 Alias added: GHSA-hvvx-8h4f-g7hg
References
More Moddable vulnerabilities
- TI-2020-15560 Heap buffer overflow in the fxCheckArrowFunction function at… CVSS 3.1CRITICAL 9.8
- TI-2019-12310 In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in… CVSS 3.1CRITICAL 9.8
- TI-2020-15563 Null Pointer Dereference. CVSS 3.1HIGH 7.5
- TI-2021-10097 OpenSource Moddable v10.5.0 was discovered to contain a stack overflow in the… CVSS 3.1HIGH 7.8
- TI-2021-10095 OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the… CVSS 3.1HIGH 7.8
- TI-2021-10093 OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the… CVSS 3.1HIGH 7.8
Sources
- CVE-2021-29326 · CVE Program
- CVE-2021-29326 · NVD
- FIRST EPSS
- GHSA-hvvx-8h4f-g7hg · GitHub Advisory Database · CC BY 4.0
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