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CVE-2026-42483

CRITICAL CVSS: 9.8 Published: 2026-05-01 Modified: 2026-06-17

Description

A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects module_hash_decode in multiple Kerberos-related modules because account_info_len is calculated from untrusted delimiter positions without upper-bound validation before memcpy copies the data into a fixed-size account_info buffer.

Affected Platforms

Hashcat Hashcat

Weakness Type

CWE-787, CWE-122

References