Moole Vulnerability Database

Find real vulnerabilities before they ship

Medium

CVE-2026-27171

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.

VectorLOCAL

PublishedFeb 18, 2026, 04:16

Published Bycve@mitre.org

Base Score

Score5.5

Affected Versions

No affected versions found.

References

https://7asecurity.com/blog/2026/02/zlib-7asecurity-audit/
https://7asecurity.com/reports/pentest-report-zlib-RC1.1.pdf
https://github.com/madler/zlib/issues/904
https://github.com/madler/zlib/releases/tag/v1.3.2
https://ostif.org/zlib-audit-complete/

Weakness Type

CWE-1284

CVSS Metrics

Base Score

5.5

Vector String

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Base SeverityMedium

Version

3.1

Attack Vector (AV)

LOCAL