CVE-2026-0821
A vulnerability was determined in quickjs-ng quickjs up to 0.11.0.
Does this matter?
Lower severity and a low EPSS score (0.52%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.5 MEDIUMCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.52% probability · 44th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-122
- Affected
- quickjs-ng/quickjs
- Source
- cna@vuldb.com
EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/quickjs-ng/quickjs/
- https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5Patch
- https://github.com/quickjs-ng/quickjs/issues/1296Exploit, Issue Tracking, Vendor Advisory
- https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395Exploit, Issue Tracking, Vendor Advisory
- https://github.com/quickjs-ng/quickjs/pull/1299Issue Tracking
- https://vuldb.com/?ctiid.340355Permissions Required, VDB Entry
- https://vuldb.com/?id.340355Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.731780Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.