CVE-2021-29326
OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString...
OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString function at /moddable/xs/sources/xsSymbol.c.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString function at /moddable/xs/sources/xsSymbol.c.
- Record
CVE-2021-29326- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString function at /moddable/xs/sources/xsSymbol.c.
- Record
CVE-2021-29326- Updated
- 2026-11-02
EUVDEUVD-2021-15962 No score
OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString function at /moddable/xs/sources/xsSymbol.c.
- Record
EUVD-2021-15962- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hvvx-8h4f-g7hg No score
OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString...
OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString function at /moddable/xs/sources/xsSymbol.c.
- Record
GHSA-hvvx-8h4f-g7hg- Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-29326 is a high vulnerability (CVSS 7.8) in Moddable, published November 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. No source names a fixed version.