What’s Vulnerable › Vulnerabilities

CVE-2026-42483

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-05-01 · updated 2026-06-17
• Weakness: CWE-787

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: 7.1.2

References

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

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