{"action":"Upgrade libtoxcore to 0.2.8-1 or later.","affected":[{"fixed":"0.2.8-1","introduced":"0"}],"component":"libtoxcore","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["0.2.8-1"],"id":"tcs_01M5NDBZC58PJXSPF0Q0MMTHJD","modified_at":"2026-10-23T18:04:47.437269893Z","published_at":"2021-12-13T01:15:07.533Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-25021","https://security-tracker.debian.org/tracker/CVE-2018-25021"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-25021#Debian:13/libtoxcore","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-25021"}],"summary":"The TCP Server module in toxcore before 0.2.8 doesn't free the TCP priority queue under certain conditions, which allows a remote attacker to exhaust the system's memory, causing a denial of service ("}