CVE-2026-0821CRITICAL 9.8EPSS p35.2%
CVE-2026-0821CVE-2026-0821
Description
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.
Scoring
| CVSS 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.44% probability of exploitation · percentile 35.2% · 2026-06-18T12:00:27Z |
| Published | 2026-01-10 |
| Last modified | 2026-04-29 |
Underlying weaknesses· 2
References
- https://github.com/quickjs-ng/quickjs/
- https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5
- https://github.com/quickjs-ng/quickjs/issues/1296
- https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395
- https://github.com/quickjs-ng/quickjs/pull/1299
- https://vuldb.com/?ctiid.340355
- https://vuldb.com/?id.340355
- https://vuldb.com/?submit.731780
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Improper Restriction of Operations within the Bounds of a Memory Buffercwe-119 | 0% | live |
| Weakness | Heap-based Buffer Overflowcwe-122 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.