NVD Vulnerability Detail
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CVE-2026-42483
Summary

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.

Publication Date May 1, 2026, 11:16 p.m.
Registration Date May 2, 2026, 4:06 a.m.
Last Update May 2, 2026, 3:16 a.m.
CVSS3.1 : HIGH
スコア 7.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I)
可用性への影響(A)
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:hashcat:hashcat:7.1.2:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List