CVE-2026-80585 | Linux Kernel up to 6.6.152/6.12.104/6.18.45/7.1.9 MPTCP Fast Open mptcp_fastopen_subflow_synack_set_params state issue

A vulnerability described as very critical has been identified in Linux Kernel up to 6.6.152/6.12.104/6.18.45/7.1.9. This vulnerability affects the function mptcp_fastopen_subflow_synack_set_params of the component MPTCP Fast Open. The manipulation results in state issue.

This vulnerability is cataloged as CVE-2026-80585. The attack may be launched remotely. There is no exploit available.

Upgrading the affected component is recommended.VulDB Recent EntriesRead More