CVE-2026-42483
CRITICALhashcat 7.1.2 - Heap-based Buffer Overflow in Kerberos Hash Parser
Title source: llmDescription
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.
References (1)
Core 1
Scores
CVSS v3
9.8
EPSS
0.0030
EPSS Percentile
22.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-122
CWE-787
Status
published
Products (1)
hashcat/hashcat
7.1.2
Published
May 01, 2026
Tracked Since
May 01, 2026