CVE-2026-42483

critical · 9.8

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.

9.8

CVSS

0.3%

EPSS (exploit prob.)

23rd

EPSS percentile

2026-05-01

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-787CWE-122

Affected products

Vendor	Product	Affected versions
hashcat	hashcat	7.1.2

Check a specific version with /api/v1/cve/match.

References

https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f
https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-42483