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Mishegos

Tool ☆ WATCH ⎘ SHARE

First seen 6/9/2026

Last seen 6/9/2026

Evidence 5 chunks

01

NEIGHBORHOOD

18 nodes · 23 edges

graph · Mishegos · depth=1

02

RELATIONSHIPS

17 connections

libbfd evaluates → 100% 2e evidence

Mishegos evaluates libbfd as one of its fuzzing worker targets.

XED evaluates → 100% 2e evidence

Mishegos evaluates XED as one of its fuzzing worker targets.

Zydis evaluates → 100% 2e evidence

Mishegos evaluates Zydis as one of its fuzzing worker targets.

decoder discrepancy introduces → 95% 2e evidence

Mishegos discovers and reports decoder discrepancies between different x86_64 decoder implementations.

x86_64 instruction decoding evaluates → 100% 2e evidence

Mishegos is a differential fuzzer specifically targeting x86_64 instruction decoders.

mishegos worker ← part of 95% 2e evidence

Mishegos is composed of worker processes, each wrapping a decoder target with a defined ABI.

cohort output uses → 95% 2e evidence

Mishegos organizes decoder outputs into cohorts for analysis.

Differential Fuzzing implements → 100% 2e evidence

Mishegos is described as a differential fuzzer for x86_64 instruction decoders, integrating the sliding mutation approach into a differential fuzzing scheme.

passes.yml ← part of 90% 1e evidence

passes.yml is the configuration file for analysis passes in Mishegos.

Trail of Bits authored by → 95% 1e evidence

Mishegos is open-sourced by Trail of Bits.

sliding mutation engine implements → 100% 1e evidence

Mishegos uses the sliding mutation engine to generate x86_64 instruction candidates by extracting windows of up to 15 bytes.

shared memory slot uses → 95% 1e evidence

Mishegos uses shared memory slots to pass inputs to workers and collect outputs.

worker process ABI uses → 95% 1e evidence

Each fuzzing target in Mishegos is wrapped into a worker process with a well-defined ABI.

analysis pass uses → 90% 1e evidence

Mishegos's analysis tool organizes filters into passes to process output cohorts.

analysis filter uses → 90% 1e evidence

Mishegos uses analysis filters as small scripts to process and filter cohort output.

input minimization uses → 90% 1e evidence

Mishegos includes a minimize-input filter that reduces instruction candidates to the minimal relevant length.

mishmat uses → 95% 1e evidence

Mishegos uses mishmat to visualize analysis output as HTML tables.