CVE-2025-46687

MEDIUM
Published Apr 27, 2025 Modified Jan 14, 2026 CWE-770

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.

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CVSS v3.1 Score

5.6
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Weakness Type (CWE)

CWE-770 CWE-770

Affected Products

Vendor Product
bellard quickjs
quickjs-ng quickjs

References

Frequently Asked Questions

What is CVE-2025-46687? +
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. It has a CVSS v3.1 base score of 5.6 (MEDIUM).
How severe is CVE-2025-46687? +
CVE-2025-46687 has a CVSS v3.1 score of 5.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2025-46687? +
CVE-2025-46687 affects products from bellard, quickjs-ng, specifically: quickjs. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-46687? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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