{"action":"Upgrade linux to 6.1.55-1 or later.","affected":[{"fixed":"6.1.55-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.55-1"],"id":"tcs_01M5NJBP1Z8AVY9Y9FH5KKAQH5","modified_at":"2026-10-26T18:01:43.515018453Z","published_at":"2023-09-06T14:15:12.357Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-4623","https://security-tracker.debian.org/tracker/CVE-2023-4623"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-4623","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-4623"}],"summary":"A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing c"}