What’s Vulnerable › Vulnerabilities

CVE-2019-16366

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-09-16 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• Moddable: os180329
• Moddable Xs: 9.0.0

References

• https://github.com/Moddable-OpenSource/moddable/issues/235
• https://github.com/Moddable-OpenSource/moddable/issues/235

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