VULNERABILITY INTELLIGENCE

CVE-2026-27171

CVSS score2.9 LOW
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-02-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Description

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.

Weakness classification

  • CWE-1284: Improper Validation of Specified Quantity in Input

Primary references