CVE-2025-46687

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.

Category

5.6
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: QuickJS Project QuickJS
Published at:
Updated at:

References

Link Tags
https://github.com/quickjs-ng/quickjs/issues/1018
https://github.com/quickjs-ng/quickjs/pull/1020
https://github.com/bellard/quickjs/commit/1eb05e44fad89daafa8ee3eb74b8520b4a37ec9a
https://github.com/quickjs-ng/quickjs/commit/28fa43d3ddff2c1ba91b6e3a788b2d7ba82d1465
https://github.com/bellard/quickjs/issues/399
https://bellard.org/quickjs/Changelog

Frequently Asked Questions

What is the severity of CVE-2025-46687?
CVE-2025-46687 has been scored as a medium severity vulnerability.
How to fix CVE-2025-46687?
To fix CVE-2025-46687, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-46687 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-46687 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-46687?
CVE-2025-46687 affects QuickJS Project QuickJS.
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