{"action":"Upgrade linux to 6.12.9-1 or later.","affected":[{"fixed":"6.12.9-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.12.9-1"],"id":"tcs_01M5NN0664RNFCYMGQ059R2V3Q","modified_at":"2026-09-01T20:05:41.927398337Z","published_at":"2025-01-15T13:15:15.220Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21629","https://security-tracker.debian.org/tracker/CVE-2025-21629"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21629#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21629"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets The blamed commit disabled hardware offoad of IPv6 packets with extensio"}