🛡️ CVE-2026-42484
🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-787 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-787
Public Exploit ⚠️ Yes
Source NVD
Published 2026-05-01
Updated 2026-06-02
Modified 2026-05-01
Fix URL N/A

Affected Packages

Software From version Fixed in
hashcat — —

References

Exploit, Mitigation, Third Party Advisory https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f
Exploit, Mitigation, Third Party Advisory https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f

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