VulnerabilityAnalyzed
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.
HIGH 7.8EPSS 0.29%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- bellard/quickjs · quickjs-ng/quickjs
- Source
- cve@mitre.org
References
- https://bellard.org/quickjs/ChangelogRelease Notes
- https://github.com/bellard/quickjs/commit/1eb05e44fad89daafa8ee3eb74b8520b4a37ec9aPatch
- https://github.com/bellard/quickjs/issues/399Exploit, Issue Tracking, Vendor Advisory
- https://github.com/quickjs-ng/quickjs/commit/28fa43d3ddff2c1ba91b6e3a788b2d7ba82d1465Patch
- https://github.com/quickjs-ng/quickjs/issues/1018Exploit, Issue Tracking, Vendor Advisory
- https://github.com/quickjs-ng/quickjs/pull/1020Issue Tracking, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.