CVE-2026-42577
Analyzed Analyzed - Analysis Complete
BaseFortify

Publication date: 2026-05-13

Last updated on: 2026-05-18

Assigner: GitHub, Inc.

Description
Netty is an asynchronous, event-driven network application framework. From 4.2.0.Final to 4.2.13.Final , Netty's epoll transport fails to detect and close TCP connections that receive a RST after being half-closed, leading to stale channels that are never cleaned up and, in some code paths, a 100% CPU busy-loop in the event loop thread. This vulnerability is fixed in 4.2.13.Final.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-13
Last Modified
2026-05-18
Generated
2026-06-10
EPSS Evaluated
2026-06-08
NVD
CVE-2026-42577
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
netty netty From 4.2.0 (inc) to 4.2.13 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-772 The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
AI Quick Actions have not been generated yet.
Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-42577. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart