CVE-2026-42484

Description

A heap-based buffer overflow in hex_to_binary in the PKZIP hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted PKZIP hash file. The issue affects modules 17200, 17210, 17220, 17225, and 17230. When data_type_enum<=1, attacker-controlled hex data from a user-supplied hash string is decoded into a fixed-size buffer without proper input-length validation.

PUBLISHED Reserved 2026-04-27 | Published 2026-05-01 | Updated 2026-05-01 | Assigner mitre

References

gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f exploit

gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f

cve.org (CVE-2026-42484)

nvd.nist.gov (CVE-2026-42484)

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