{"id":"CVE-2019-11778","aliases":["DEBIAN-CVE-2019-11778","EUVD-2019-3445","GHSA-rr62-j9x2-468p","openSUSE-SU-2024:11057-1"],"status":"published","title":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last...","description":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00761,"percentile":0.55589,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2019-09-18T22:25:53Z","modified":"2026-10-24T10:30:35Z","fixes":[{"ecosystem":"Debian:12","package":"mosquitto","fixed_in":["1.6.6-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mosquitto","fixed_in":["1.6.6-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mosquitto","fixed_in":["1.6.6-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"mosquitto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.6-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"mosquitto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.6-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"mosquitto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.6-1"}]}]}],"products":[{"vendor":"eclipse","product":"mosquitto"},{"vendor":"the eclipse foundation","product":"eclipse mosquitto"}],"references":[{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=551162","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-11778"},{"url":"https://github.com/advisories/GHSA-rr62-j9x2-468p"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-11778","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7650","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7651","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7652","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9868","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12543","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12546","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12550","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12551","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20145","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11778","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11779","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28166","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2019-11778","description":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.","status":"published","published":"2019-09-18T22:25:53Z","modified":"2024-08-04T23:03:32.828Z","cwes":["CWE-416"],"updated_at":"2026-11-02T14:20:26.416173Z"}],"euvd":[{"id":"EUVD-2019-3445","description":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.","status":"published","published":"2019-09-18T22:25:53Z","modified":"2024-08-04T23:03:32Z","updated_at":"2026-11-03T02:40:47.960625Z"}],"ghsa":[{"id":"GHSA-rr62-j9x2-468p","title":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last...","description":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.","status":"published","published":"2022-05-24T16:56:28Z","modified":"2024-04-04T01:58:18Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:56:05.019773Z"}],"nvd":[{"id":"CVE-2019-11778","description":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.","status":"published","published":"2019-09-18T23:15:10.987Z","modified":"2026-06-17T02:13:37.547Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":5.5,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:05:28.126831Z"}],"osv":[{"id":"CVE-2019-11778","description":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.","status":"published","published":"2019-09-18T23:15:10.987Z","modified":"2026-10-24T10:30:35.094313011Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:10.718934Z"},{"id":"DEBIAN-CVE-2019-11778","description":"If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.","status":"published","published":"2019-09-18T23:15:10.987Z","modified":"2026-09-21T07:01:44.88746915Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:45:31.467893Z"},{"id":"openSUSE-SU-2024:11057-1","title":"libmosquitto1-2.0.11-1.2 on GA media","description":"These are all security issues fixed in the libmosquitto1-2.0.11-1.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:24:30.951191Z","updated_at":"2026-11-02T16:58:34.894275Z"}]}}