What’s Vulnerable › Vulnerabilities

CVE-2020-25462

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-12-04 · updated 2026-06-17
• Weakness: CWE-787

Description

Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK before OS200903.

Affected products

• Moddable: before os200908 — fixed in os200908

How to fix

Upgrade to a fixed version: Moddable os200908. Check the vendor advisory for mitigations.

References

• https://github.com/Moddable-OpenSource/moddable/issues/432
• https://github.com/Moddable-OpenSource/moddable/releases/tag/OS200903
• https://github.com/Moddable-OpenSource/moddable/issues/432
• https://github.com/Moddable-OpenSource/moddable/releases/tag/OS200903

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