VDB
CVE-2026-0821
CVE-2026-0821
PUBLISHED
CVSS 6.900000095367432 MEDIUM
A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function js_typed_array_constructor of the file quickjs.c. Executing a manipulation can lead to heap-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called c5d80831e51e48a83eab16ea867be87f091783c5. A patch should be applied to remediate this issue.
EPSS 0.52% · 43.9th percentile
Risk Scores
CVSS 4.0
6.900000095367432
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS Score
0.52%
43.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| quickjs-ng | quickjs | 0.1, 0.3, 0.4 |
Timeline
- Jan 10, 2026 CVE Published
- Jan 10, 2026 PoC Published
- Jan 10, 2026 PoC Published
- Jan 11, 2026 EPSS Score
- Jan 15, 2026 EPSS Score
- Jan 19, 2026 EPSS Score
- Jan 23, 2026 EPSS Score
- Jan 27, 2026 EPSS Score
- Jan 31, 2026 EPSS Score
- Feb 4, 2026 EPSS Score
- Feb 8, 2026 EPSS Score
- Feb 12, 2026 EPSS Score
References
- https://github.com/quickjs-ng/quickjs/pull/1299 fix
- https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395 discussion
- https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5 fix
- VDB-340355 | quickjs-ng quickjs quickjs.c js_typed_array_constructor heap-based overflow vdb
- Submit #731780 | quickjs-ng quickjs v0.11.0 Heap-based Buffer Overflow third-party-advisory
- https://github.com/quickjs-ng/quickjs/issues/1296 discussion
- https://github.com/quickjs-ng/quickjs/ url
- https://github.com/quickjs-ng/quickjs url
- VDB-340355 | CTI Indicators (IOB, IOC, IOA) url
- https://nvd.nist.gov/vuln/detail/CVE-2026-0821 advisory