{"id":"CVE-2026-19720","aliases":["DEBIAN-CVE-2026-19720","UBUNTU-CVE-2026-19720"],"status":"published","description":"talkd buffer overflow with long DNS names","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-08-15T08:47:33.553190456Z","modified":"2026-10-17T12:58:48Z","fixes":[{"ecosystem":"Debian:14","package":"inetutils","fixed_in":["2:2.8-3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.4-2","2:2.4-2+deb12u1","2:2.4-2+deb12u2","2:2.4-2+deb12u3","2:2.4-3","2:2.5-1","2:2.5-2","2:2.5-3","2:2.5-4","2:2.5-5","2:2.5-6","2:2.6-1","2:2.6-2","2:2.6-3","2:2.6-4","2:2.7-1","2:2.7-2","2:2.7-3","2:2.7-4","2:2.7-5","2:2.8-1","2:2.8-2","2:2.8-3"]},{"source":"osv","ecosystem":"Debian:13","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.6-3","2:2.6-3+deb13u1","2:2.6-3+deb13u2","2:2.6-3+deb13u3","2:2.6-4","2:2.7-1","2:2.7-2","2:2.7-3","2:2.7-4","2:2.7-5","2:2.8-1","2:2.8-2","2:2.8-3"]},{"source":"osv","ecosystem":"Debian:14","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.8-3"}]}],"versions":["2:2.6-3","2:2.6-4","2:2.7-1","2:2.7-2","2:2.7-3","2:2.7-4","2:2.7-5","2:2.8-1","2:2.8-2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:1.9.1.306-0a482-1","2:1.9.1.363-bbc1-1","2:1.9.2-1","2:1.9.2-1ubuntu0.1~esm1","2:1.9.2-1ubuntu0.1~esm2","2:1.9.2-1ubuntu0.1~esm4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:1.9.4-1","2:1.9.4-1build1","2:1.9.4-1ubuntu0.1~esm1","2:1.9.4-1ubuntu0.1~esm2","2:1.9.4-1ubuntu0.1~esm3","2:1.9.4-1ubuntu0.1~esm5","2:1.9.4-1ubuntu0.1~esm6"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:1.9.4-2build1","2:1.9.4-3","2:1.9.4-3ubuntu0.1","2:1.9.4-3ubuntu0.1+esm1","2:1.9.4-3ubuntu0.1+esm2","2:1.9.4-3ubuntu0.1+esm4","2:1.9.4-3ubuntu0.1+esm5"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:1.9.4-10build1","2:1.9.4-11","2:1.9.4-11ubuntu0.1","2:1.9.4-11ubuntu0.1+esm1","2:1.9.4-11ubuntu0.2","2:1.9.4-11ubuntu0.2+esm1","2:1.9.4-11ubuntu0.2+esm3","2:1.9.4-11ubuntu0.2+esm4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.0-1","2:2.2-2","2:2.2-2ubuntu0.1","2:2.2-2ubuntu0.2","2:2.2-2ubuntu0.2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.4-2ubuntu2","2:2.4-3ubuntu1","2:2.5-3ubuntu1","2:2.5-3ubuntu3","2:2.5-3ubuntu4","2:2.5-3ubuntu4.1","2:2.5-3ubuntu4.2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.7-2ubuntu1","2:2.8-2ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"inetutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.6-1ubuntu3","2:2.6-4ubuntu1","2:2.7-2ubuntu1","2:2.7-2ubuntu1.1"]}],"references":[{"url":"https://security-tracker.debian.org/tracker/CVE-2026-19720","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-19720","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-19720","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2026/07/25/3","tags":["report"]}],"sources":{"osv":[{"id":"DEBIAN-CVE-2026-19720","status":"published","published":"2026-08-15T08:47:33.553190456Z","modified":"2026-09-01T15:05:54.407088507Z","updated_at":"2026-11-02T15:45:53.097669Z"},{"id":"UBUNTU-CVE-2026-19720","description":"talkd buffer overflow with long DNS names","status":"published","published":"2026-08-17T00:00:00Z","modified":"2026-10-17T12:58:48.41176714Z","updated_at":"2026-11-02T16:56:01.334185Z"}]}}