CVE-2025-46688

MEDIUMNVD 5.65.6—Trending — 4 sources updated this weekElevated

5.6

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.

CVSS v3: 5.6
EG Score: 5.6(medium)
EPSS: 25.5%
KEV: Not listed

Published

April 27, 2025

Last Modified

May 30, 2025

References (7)

cve@mitrehttps://bellard.org/quickjs/Changelog
cve@mitrehttps://github.com/bellard/quickjs/commit/1eb05e44fad89daafa8ee3eb74b8520b4a37ec9a
cve@mitrehttps://github.com/bellard/quickjs/issues/399
cve@mitrehttps://github.com/quickjs-ng/quickjs/commit/28fa43d3ddff2c1ba91b6e3a788b2d7ba82d1465
cve@mitrehttps://github.com/quickjs-ng/quickjs/issues/1018
cve@mitrehttps://github.com/quickjs-ng/quickjs/pull/1020
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/quickjs-ng/quickjs/issues/1018

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-131Incorrect Calculation of Buffer Size

Data Freshness Timeline

(refreshed 12× in last 7d / 12× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-30 06:49 UTCEG score recompute
2026-05-30 06:49 UTCGHSA enrichment
2026-05-30 06:21 UTCOSV refresh
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-46688?

CVE-2025-46688 is a medium vulnerability published on April 27, 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.

When was CVE-2025-46688 disclosed?

CVE-2025-46688 was first published in the National Vulnerability Database on April 27, 2025, with the most recent update on May 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-46688 actively exploited?

CVE-2025-46688 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-46688?

CVE-2025-46688 has a CVSS v3 base score of 5.6 (NVD).

How do I remediate CVE-2025-46688?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-46688, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-46688

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CVE-2025-46688

📅 Published

🔄 Last Modified

🔗 References (7)