CVE-2026-42483

9.8 CRITICAL
Published: May 01, 2026 Modified: May 01, 2026
View on NVD

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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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f
Source: cve@mitre.org
Exploit Mitigation Third Party Advisory
https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Mitigation Third Party Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
0.1%
23th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

hashcat