CVE-2026-42483
criticalA 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 v…
Vendor / product: Hashcat — hashcat
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.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-05-01 14:16
Modified: 2026-11-11 21:10
NVD status: Modified
Last synced 5 hours ago
Verified against the source API 2026-11-11 21:11 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
hashcat / hashcat 7.1.2
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f
Patch / mitigation: https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f
References
- https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f cve@mitre.org
- https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 21:11 UTC · record ↗