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.
References (5)
Scores
CVSS v3
2.9
EPSS
0.0001
EPSS Percentile
0.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1284
Status
published
Products (1)
zlib/zlib
< 1.3.2
Published
Feb 18, 2026
Tracked Since
Feb 18, 2026