CVE-2019-16366
In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in...
CVE-2019-16366 is a critical vulnerability (CVSS 9.8) in Moddable, published September 16, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.35%, the 72nd percentile. No source names a fixed version.
- Severity
- 9.8 CriticalCVSS 3.1, NVD
- Exploit chance
- 1.35%EPSS, 72nd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in xsAPI.c when called from fxRunDefine in xsRun.c, as demonstrated by crafted JavaScript code to xst.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
What each source reports
NVD Score used
In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in xsAPI.c when called from fxRunDefine in xsRun.c, as demonstrated by crafted JavaScript code to xst.
- Record
CVE-2019-16366- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE ListNo score
In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in xsAPI.c when called from fxRunDefine in xsRun.c, as demonstrated by crafted JavaScript code to xst.
- Record
CVE-2019-16366- Updated
- 2026-11-02
EUVDEUVD-2019-7127No score
In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in xsAPI.c when called from fxRunDefine in xsRun.c, as demonstrated by crafted JavaScript code to xst.
- Record
EUVD-2019-7127- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h8p9-2q3j-5c34No score
In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in...
In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in xsAPI.c when called from fxRunDefine in xsRun.c, as demonstrated by crafted JavaScript code to xst.
- Record
GHSA-h8p9-2q3j-5c34- Weakness
- CWE-120
- Updated
- 2026-11-02
OSV
In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in xsAPI.c when called from fxRunDefine in xsRun.c, as demonstrated by crafted JavaScript code to xst.
- Record
CVE-2019-16366- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.