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CVE-2025-46688

Date: April 26, 2025

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.

Severity Score

5.6

Related Resources (9)

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

Url: https://security-tracker.debian.org/tracker/CVE-2025-46688

Url: https://nvd.nist.gov/vuln/detail/CVE-2025-46688

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

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

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

Url: https://bellard.org/quickjs/Changelog

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

Url: https://www.mend.io/vulnerability-database/CVE-2025-46688

Severity Score

5.6

Weakness Type (CWE)

Incorrect Calculation of Buffer Size

CWE-131

CVSS v3.1

Base Score:	5.6
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	CHANGED
Confidentiality (C):	LOW
Integrity (I):	LOW
Availability (A):	LOW

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