{"action":"Upgrade netty to 1:4.1.48-2 or later.","affected":[{"fixed":"1:4.1.48-2","introduced":"0"}],"component":"netty","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:4.1.48-2"],"id":"tcs_01M5NFDBA46TEZXHRMQRCT5GD4","modified_at":"2026-10-09T09:47:31.002762910Z","published_at":"2021-02-08T20:15:12.433Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-21290","https://security-tracker.debian.org/tracker/CVE-2021-21290"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-21290#Debian:14/netty","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-21290"}],"summary":"Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final"}