CVE-2025-46688

Summary

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.

Affected Software

Weaknesses

• CWE-131: CWE-131 Incorrect Calculation of Buffer Size

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/quickjs-ng/quickjs/issues/1018

References

• https://github.com/quickjs-ng/quickjs/issues/1018
• https://github.com/quickjs-ng/quickjs/pull/1020
• https://github.com/bellard/quickjs/commit/1eb05e44fad89daafa8ee3eb74b8520b4a37ec9a
• https://github.com/quickjs-ng/quickjs/commit/28fa43d3ddff2c1ba91b6e3a788b2d7ba82d1465
• https://github.com/bellard/quickjs/issues/399
• https://bellard.org/quickjs/Changelog

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