CVE-2026-42483
| Summary |
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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| Publication Date |
May 1, 2026, 11:16 p.m. |
| Registration Date |
May 2, 2026, 4:06 a.m. |
| Last Update |
May 2, 2026, 3:16 a.m. |
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CVSS3.1 : HIGH
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| スコア |
7.3
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| Vector |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
不要 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更なし |
| 機密性への影響(C) |
低 |
| 完全性への影響(I) |
低 |
| 可用性への影響(A) |
低 |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:hashcat:hashcat:7.1.2:*:*:*:*:*:*:* |
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Related information, measures and tools
Common Vulnerabilities List