{"id":"CVE-2018-18764","aliases":["DEBIAN-CVE-2018-18764","EUVD-2018-10480","GHSA-rv8p-xfjh-v6c6","UBUNTU-CVE-2018-18764"],"status":"published","title":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing...","description":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","severity":{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01835,"percentile":0.79083,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2018-10-28T19:00:00Z","modified":"2026-10-24T10:30:27Z","fixes":[{"ecosystem":"Debian:12","package":"smplayer","fixed_in":["18.5.0~ds1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"smplayer","fixed_in":["18.5.0~ds1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"smplayer","fixed_in":["18.5.0~ds1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"smplayer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.5.0~ds1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"smplayer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.5.0~ds1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"smplayer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.5.0~ds1-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"smplayer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["17.7.0~ds0-1build1","17.8.0~ds0-1","17.8.0~ds0-1build1","17.11.2~ds0-1","18.2.2~ds0-1"]}],"products":[{"vendor":"cesanta","product":"mongoose"}],"references":[{"url":"https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20getu16%20heap%20buffer%20overflow2.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20getu16%20heap%20buffer%20overflow1.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-18764"},{"url":"https://github.com/advisories/GHSA-rv8p-xfjh-v6c6"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-18764","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-18764","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-18764","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-18764","description":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","status":"published","published":"2018-10-28T19:00:00Z","modified":"2024-09-16T19:05:17.97Z","updated_at":"2026-11-02T14:35:11.426178Z"}],"euvd":[{"id":"EUVD-2018-10480","description":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","status":"published","published":"2018-10-28T19:00:00Z","modified":"2024-09-16T19:05:17Z","updated_at":"2026-11-03T00:55:26.31684Z"}],"ghsa":[{"id":"GHSA-rv8p-xfjh-v6c6","title":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing...","description":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","status":"published","published":"2022-05-14T01:51:59Z","modified":"2023-02-02T05:04:51Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:51:58.308794Z"}],"nvd":[{"id":"CVE-2018-18764","description":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","status":"published","published":"2018-10-29T12:29:10.07Z","modified":"2026-06-17T01:47:51.48Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:04:46.409324Z"}],"osv":[{"id":"CVE-2018-18764","description":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","status":"published","published":"2018-10-29T12:29:10.07Z","modified":"2026-10-24T10:30:27.032467811Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:08.834469Z"},{"id":"DEBIAN-CVE-2018-18764","description":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","status":"published","published":"2018-10-29T12:29:10.07Z","modified":"2026-10-23T18:02:29.337856271Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:30.57382Z"},{"id":"UBUNTU-CVE-2018-18764","description":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","status":"published","published":"2018-10-29T12:29:00Z","modified":"2025-10-24T04:47:16Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:17.496046Z"}]}}