CVE-2021-29329

FAUCET Score

CVE-2021-29329 is a high-severity stack overflow vulnerability found in OpenSource Moddable v10.5.0, specifically within the fxBinaryExpressionNodeDistribute function. This vulnerability, with a CVSS score of 7.8, can be exploited locally with low attack complexity, requiring user interaction, and could lead to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, nor are there publicly available exploit tools or significant community discussion surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		10.5.0CPE matchmatch criteria	cpe:2.3:a:moddable:moddable:10.5.0:::::::*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

1.8

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.74%

Probability of exploitation in next 30 days

EPSS Percentile

50.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-26

Model: v2026.06.15

This CVE's current EPSS score of 0.0074 is in the 47th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference

View patch

References

github.com / Moddable-OpenSource/moddable/issues/587

ExploitIssue TrackingPatchThird Party Advisory