CVE-2019-16366
CRITICALCVSS 9.8/10EPSS 1.35%
Last modified
CVE-2019-16366 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Moddable | Moddable | os180329 |
| Moddable | Xs | 9.0.0 |
References
- https://github.com/Moddable-OpenSource/moddable/issues/235Exploit, Issue Tracking, Third Party Advisory
- https://github.com/Moddable-OpenSource/moddable/issues/235Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-16366?
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.
How severe is CVE-2019-16366?
CVE-2019-16366 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.
How do I fix CVE-2019-16366?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2019-16366?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST