cvedb.io
CVE-2026-45673
MEDIUM · CVSS 6.8
EPSS exploitation probability: 0%
Published 2026-06-12T15:16:27.417 · Last modified 2026-06-17T10:52:27.190

Summary

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.

Affected products

netty — netty

Does this affect you?

Add your gear to cvedb and we'll alert you only when netty ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.