Zlib CVEs & Vulnerabilities

1 CVEs affecting Zlib products, tracked from the National Vulnerability Database, with CVSS/EPSS scores and exploitation status.

1 CVEs→ All vendors

Most Affected Products

zlib 1

CVE-2026-27171LOWpoc

zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.

18 Feb 2026

2.9

CVSS

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