Author

Christoph Csallner

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Jul 2026

ZIMPAF & RedPhuzz: High-fidelity Web Application Fuzzing via Branch, Language Construct, and Function Call Monitoring

We present ZIMPAF, runtime interpreter instrumentation, and RedPhuzz, a fuzzer, to address key limitations of state-of-the-art fuzzers: inefficient instrumentation, the lack of knowledge of the execution environment, and limited web domain knowledge. ZIMPAF implements a novel multi-granular runtime interpreter instrume...

Tennov Simanjuntak, Christoph Csallner · arXiv.org · 0 citations

Preprint Jul 2026

Toward Inferring Accurate Context-free Grammars for Big Languages in a Black-box Setting

Black-box context-free grammar inference is crucial for program analysis, reverse engineering, program understanding, fuzzing, and security. But existing approaches such as Arvada, TreeVada, Kedavra, and Cucio struggle with scalability, accuracy, and grammar readability, especially on larger languages. To address this...

Mohammad Rifat Arefin, Nuhiat Arefin, Shanto Rahman et al. · 0 citations