CVE-2026-23239 | Linux Kernel up to 6.12.74/6.18.15/6.19.5/7.0-rc1 Delayed ACK espintcp_close race condition
A vulnerability described as critical has been identified in Linux Kernel up to 6.12.74/6.18.15/6.19.5/7.0-rc1. Affected by this issue is the function espintcp_close of the component Delayed ACK Handler. Such manipulation leads to race condition.
This vulnerability is traded as CVE-2026-23239. Access to the local network is required for this attack to succeed. There is no exploit available.
Upgrading the affected component is recommended.