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.
Exploitability
AV:LAC:HPR:NUI:NScope
S:CImpact
C:LI:LA:L5.6/CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:LOther