Heap-Based Buffer Overflow in QuickJS by Bellard
CVE-2025-46687

5.6MEDIUM

Key Information:

Vendor

Quickjs Project

Status
Quickjs
Vendor
CVE Published:
27 April 2025

What is CVE-2025-46687?

A heap-based buffer overflow vulnerability has been identified in QuickJS (version 0.9.0 and earlier), due to a missing length check in the JS_ReadString function when processing strings. This flaw can potentially allow an attacker to exploit memory corruption issues, leading to arbitrary code execution or crashes within the application. Users are advised to update to versions released after April 26, 2025, to mitigate this risk.

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Deploy the Patch

Affected Version(s)

QuickJS 0 < 2025-04-26

References

https://github.com/quickjs-ng/quickjs/issues/1018
https://github.com/quickjs-ng/quickjs/pull/1020
https://github.com/bellard/quickjs/commit/1eb05e44fad89da...

CVSS V3.1

Score:
5.6
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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