// AI news · 2026-10-27 · Google Project Zero
Project Zero Compares Fuzzilli and BigSleep on V8
Project Zero compared Fuzzilli and BigSleep in detecting V8 vulnerabilities from April to September 2026.
Published 2026-10-27 15:00 (Beijing time)Source Google Project ZeroAuto-summarised, fact-checked against source
01Summary
BigSleep found 45 bugs, Fuzzilli found 37, with 25% overlap. A dedicated experiment estimated theoretical overlap since 2023 at around 60%. The results show both methods find distinct types of issues, indicating complementary rather than replaceable roles in vulnerability detection.
Summarised from the original article by an open-source model, then checked automatically: every number and English name must appear in the source. The original article is authoritative.
02Key points
- BigSleep found 45 vulnerabilities, Fuzzilli found 37, with 25% overlap.
- Theoretical overlap since 2023 estimated at 60% via dedicated experiments.
- BigSleep initially reported non-security issues like configuration bugs.
- Fuzzilli and BigSleep remain complementary in finding complex vulnerabilities.
03Source
Fuzzers vs. AI: Comparing Fuzzilli and BigSleep on JavaScript Engines
Google Project Zero · published 2026-10-27 15:00 Beijing time
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