CVE-2026-42484
CriticalSummary
Version 7.1.2 of hashcat contains a heap-based buffer overflow vulnerability in the hex_to_binary function in the PKZIP hash parser. An attacker can exploit this flaw to cause a denial of service or potentially execute arbitrary code via a crafted PKZIP hash file.
Risk Assessment
This vulnerability could lead to significant availability issues and allow attackers to execute unauthorized code, posing a threat to system integrity.
Recommendation
It is recommended to update to the latest version of hashcat to mitigate this vulnerability and implement additional input validation mechanisms.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS