What’s Vulnerable › Vulnerabilities

CVE-2026-42484

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% 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 hex_to_binary in the PKZIP hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted PKZIP hash file. The issue affects modules 17200, 17210, 17220, 17225, and 17230. When data_type_enum<=1, attacker-controlled hex data from a user-supplied hash string is decoded into a fixed-size buffer without proper input-length validation.

Affected products

• hashcat: 7.1.2

References

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

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