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Package · Debian

zlib

15 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • High 7.4
    CVE-2026-76844 Public exploit

    zlib 1.2.11 through 1.3.2 Heap Buffer Overflow via Stale gzwrite Pointer After Failed Write

    zlib 1.2.11 through 1.3.2 contains a heap buffer overflow: after an underlying write() fails, gz_write() returns without resetting strm.next_in, leaving it pointed at the caller's buffer. A later gz* write call then derives a position from the stale pointer a…

    zlib zlib zlib webpack-dev-middleware Debian npm
  • High 7.5
    CVE-2018-25032 Public exploit EPSS 52%

    Nokogiri affected by zlib's Out-of-bounds Write vulnerability

    zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

    mariadb-10.3 mariadb-10.6 mariadb rsync Debian Ubuntu Alpine RubyGems