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zsync vulnerabilities

Vulnerabilities published for zsync in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 5

  1. CVE-2026-22184

    Medium · CVSS 4.6EPSS 0.41%No fix published

    zlib <= 1.3.1.2 untgz Global Buffer Overflow in TGZfname()

    zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer.

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