CVE-2025-46687

5.6 MEDIUM

Published: April 27, 2025 Modified: January 14, 2026

Description

quickjs-ng through 0.9.0 has a missing length check in JS_ReadString for a string, leading to a heap-based buffer overflow. QuickJS before 2025-04-26 is also affected.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://bellard.org/quickjs/Changelog

Source: cve@mitre.org

Release Notes

https://github.com/bellard/quickjs/commit/1eb05e44fad89daafa8ee3eb74b8520b4a37ec9a

Source: cve@mitre.org

Patch

https://github.com/bellard/quickjs/issues/399

Source: cve@mitre.org

Exploit Issue Tracking Vendor Advisory

https://github.com/quickjs-ng/quickjs/commit/28fa43d3ddff2c1ba91b6e3a788b2d7ba82d1465

Source: cve@mitre.org

Patch

https://github.com/quickjs-ng/quickjs/issues/1018

Source: cve@mitre.org

Exploit Issue Tracking Vendor Advisory

https://github.com/quickjs-ng/quickjs/pull/1020

Source: cve@mitre.org

Issue Tracking Patch

6 reference(s) from NVD

Quick Stats

CVSS v3 Score

5.6 / 10.0

EPSS (Exploit Probability)

0.1%

26th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-770

Affected Vendors

quickjs-ng bellard

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