{"action":"Upgrade linux to 6.12.111-1 or later.","affected":[{"fixed":"6.12.111-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.111-1"],"id":"tcs_01M5NVSQGDCJENJ0KVBN9PYT21","modified_at":"2026-10-31T10:02:06.959519362Z","published_at":"2026-09-04T16:18:13.430Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-80847","https://security-tracker.debian.org/tracker/CVE-2026-80847"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-80847#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-80847"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: tcp: clamp route advmss to TCP_MIN_MSS tcp_select_initial_window() assumes that callers never pass an MSS smaller than 1, but route-"}