CVE-2020-25464

Name: CVE-2020-25464
Creator: NVD / NIST
Published: 2020-12-04T17:15:12.993+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2020-25464 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Heap buffer overflow at moddable/xs/sources/xsDebug.c in Moddable SDK before before 20200903. The top stack frame is only partially initialized because the stack overflowed while creating the frame. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

Heap buffer overflow at moddable/xs/sources/xsDebug.c in Moddable SDK before before 20200903. The top stack frame is only partially initialized because the stack overflowed while creating the frame. This leads to a crash in the code sending the stack frame to the debugger.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.10%

61.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Moddable	Moddable	< os200903

References

https://github.com/Moddable-OpenSource/moddable/issues/431Exploit, Third Party Advisory
https://github.com/Moddable-OpenSource/moddable/issues/431Exploit, Third Party Advisory

Timeline

Published: Dec 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25464?

How severe is CVE-2020-25464?

CVE-2020-25464 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25464?

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.

Are you affected by CVE-2020-25464?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST