CVE-2025-46688

MEDIUM
2025-04-27 [email protected]
5.6
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

4
Analysis Generated
Mar 28, 2026 - 18:38 vuln.today
Patch Released
Mar 28, 2026 - 18:38 nvd
Patch available
PoC Detected
May 30, 2025 - 16:29 vuln.today
Public exploit code
CVE Published
Apr 27, 2025 - 20:15 nvd
MEDIUM 5.6

Tags

Buffer Overflow Quickjs

Description

quickjs-ng through 0.9.0 has an incorrect size calculation in JS_ReadBigInt for a BigInt, leading to a heap-based buffer overflow. QuickJS before 2025-04-26 is also affected.

Analysis

quickjs-ng through 0.9.0 has an incorrect size calculation in JS_ReadBigInt for a BigInt, leading to a heap-based buffer overflow. Rated medium severity (CVSS 5.6), this vulnerability is no authentication required. Public exploit code available.

Technical Context

This vulnerability is classified under CWE-131. quickjs-ng through 0.9.0 has an incorrect size calculation in JS_ReadBigInt for a BigInt, leading to a heap-based buffer overflow. QuickJS before 2025-04-26 is also affected. Affected products include: Quickjs-Ng Quickjs, Quickjs Project Quickjs. Version information: through 0.9.0.

Affected Products

Quickjs-Ng Quickjs, Quickjs Project Quickjs.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

48
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +28
POC: +20

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CVE-2025-46688 vulnerability details – vuln.today
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