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Affected Component
Analysis
zlib
Exploitable
Name
CVE-2026-27171
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.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://7asecurity.com/reports/pentest-report-zlib-RC1.1.pdfTechnical Description
https://github.com/madler/zlib/releases/tag/v1.3.2Release Notes
https://7asecurity.com/reports/pentest-report-zlib-RC1.1.pdfTechnical Description
Analysis#
Vulnerability Ratings#
2.9
CVSSv31
5.5
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
zlib (yocto:scarthgap)
#
Title
Author
Resolve
1
Check for negative lengths in crc32_combine functions.
Mark Adler <git@madler.net>
CVE-2026-27171