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.

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History

Fri, 01 May 2026 14:15:00 +0000

Type Values Removed Values Added
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.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-01T17:36:27.198Z

Reserved: 2026-04-27T00:00:00.000Z

Link: CVE-2026-42483

cve-icon Vulnrichment

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cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-01T14:16:22.687

Modified: 2026-05-01T15:29:35.903

Link: CVE-2026-42483

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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