CVE-2026-45673: Netty: DNS Cache Poisoning due to Predictable PRNG and Default Static Source Port
Affected: netty · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 25% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- netty · netty>= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-45673 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.