๐Ÿ›ก๏ธ CVE-2026-42577
๐ŸŸ  CVSS 8.0 โ€” High โœ… No Known Exploit CWE-772 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-772
Public Exploit โœ… No
Source NVD
Published 2026-05-06
Updated 2026-06-02
Modified 2026-05-14

Affected Packages

Software From version Fixed in
io.netty:netty-transport-native-epoll 4.2.0.Final 4.2.13.Final
netty 4.2.0 4.2.13
unknown โ€” โ€”

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