CVE-2026-44249

CVE-2026-44249

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…

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-44249?
CVE-2026-44249 is a high-severity vulnerability, classified under Improper Access Control. CVSS score: 8.1/10. Published 2026-06-11.
How severe is CVE-2026-44249?
High severity. CVSS v3 base score is 8.1 out of 10.