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// vulnerability record
cached · NVD via COSMOS syncCVE-2026-45673
MEDIUMpublished 2026-06-12 15:16 UTC · 13 days ago · modified 2026-06-15 02:14 UTC
6.8
CVSS / 10
// description
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DNS resolver uses a predictable PRNG for generating DNS transaction IDs and defaults to a static UDP source port. This combination reduces the entropy of DNS queries, enabling DNS Cache Poisoning (Kaminsky attack). Versions 4.1.135.Final and 4.2.15.Final patch the issue.
// cvss 3.1 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
// weaknesses (CWE)
- CWE-330
- CWE-340