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.
Affected products
hashcat: hashcat
References2
- gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f ExploitMitigationThird Party Advisory
- gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f ExploitMitigationThird Party Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 23 · as of 13 November 2026
- CWE
- CWE-787CWE-122
Could this be exploited in your environment?
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