{"id":"CVE-2019-19307","aliases":["DEBIAN-CVE-2019-19307","EUVD-2019-8931","GHSA-qcx8-9vm4-9g3r"],"status":"published","title":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to...","description":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-bounds write, by sending a crafted MQTT protocol packet.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.42246,"percentile":0.98706,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125","CWE-190","CWE-787","CWE-835"],"published":"2019-11-26T15:15:04Z","modified":"2026-10-20T10:50:51Z","fixes":[{"ecosystem":"Debian:12","package":"swupdate","fixed_in":["2021.04-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"swupdate","fixed_in":["2021.04-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"swupdate","fixed_in":["2021.04-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"swupdate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2021.04-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"swupdate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2021.04-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"swupdate","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2021.04-1"}]}]}],"products":[{"vendor":"cesanta","product":"mongoose"}],"references":[{"url":"https://github.com/cesanta/mongoose/issues/1055","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-19307"},{"url":"https://github.com/advisories/GHSA-qcx8-9vm4-9g3r"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-19307","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2019-19307","description":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-bounds write, by sending a crafted MQTT protocol packet.","status":"published","published":"2019-11-26T15:15:04Z","modified":"2024-08-05T02:16:46.823Z","updated_at":"2026-11-02T14:20:21.059499Z"}],"euvd":[{"id":"EUVD-2019-8931","description":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-bounds write, by sending a crafted MQTT protocol packet.","status":"published","published":"2019-11-26T15:15:04Z","modified":"2024-08-05T02:16:46Z","updated_at":"2026-11-03T02:40:25.841101Z"}],"ghsa":[{"id":"GHSA-qcx8-9vm4-9g3r","title":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to...","description":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-bounds write, by sending a crafted MQTT protocol packet.","status":"published","published":"2022-05-24T17:02:16Z","modified":"2023-01-28T05:08:26Z","updated_at":"2026-11-02T14:44:37.39101Z"}],"nvd":[{"id":"CVE-2019-19307","description":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-bounds write, by sending a crafted MQTT protocol packet.","status":"published","published":"2019-11-26T16:15:13.807Z","modified":"2026-06-17T02:26:28.313Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-125","CWE-190","CWE-787","CWE-835"],"updated_at":"2026-11-02T14:05:38.993437Z"}],"osv":[{"id":"CVE-2019-19307","description":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-bounds write, by sending a crafted MQTT protocol packet.","status":"published","published":"2019-11-26T16:15:13.807Z","modified":"2026-10-20T10:50:51.42701822Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:12.010761Z"},{"id":"DEBIAN-CVE-2019-19307","description":"An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-bounds write, by sending a crafted MQTT protocol packet.","status":"published","published":"2019-11-26T16:15:13.807Z","modified":"2026-09-21T07:02:53.997730094Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:31.867036Z"}]}}