VULNERABILITY INTELLIGENCE

CVE-2026-42484

CVSS score9.8 CRITICAL

EPSS probability0.44%

CISA KEVNot currently listed

Published2026-05-01

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

nvd@nist.gov: CWE-787
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-787

Primary references

cve@mitre.org — Exploit, Mitigation, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Mitigation, Third Party Advisory