CVE-2026-44249

8.1 HIGH

Netty is a network application framework for development of protocol servers and clients

Published: 2026-06-11 · Last updated: 2026-06-11

Severity and scoring

CVSS: 8.1 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-284, CWE-697

Description

Netty is a network application framework for development of protocol servers and clients. In netty-handler prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can bypass IPv6 subnet rules due to an incorrect masking operation in IpSubnetFilterRule.compareTo(). Valid public IP addresses can bypass the restrictions. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

Source: NVD

References

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