{"affected":[{"defaultStatus":"unaffected","product":"Qt","source":"CNA: Qt","vendor":"qt","versions":[{"lessThanOrEqual":"6.8.8","status":"affected","version":"5.12.0","versionType":"python"},{"lessThanOrEqual":"6.11.2","status":"affected","version":"6.9.0","versionType":"python"},{"lessThan":"5.12.0","status":"unaffected","version":"0","versionType":"python"}]}],"cveId":"CVE-2026-107457","cwes":["CWE-787","CWE-129"],"description":"A memory corruption vulnerability in the QMqttClient class of the Qt MQTT module. Under certain MQTT 5 connection settings between client and server, QMqttClient may corrupt memory, which can cause the application to crash.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":2.3,"severity":"low","source":"CNA: Qt","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Green","version":"4.0"},{"score":2.3,"severity":"low","source":"NVD: a59d8014-47c4-4630-ab43-e1b13cbe58e3","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:X/RE:L/U:Green","version":"4.0"}],"modifiedAt":1793611056430,"publishedAt":1793608692500,"references":[{"source":"CNA: Qt","tags":["vendor-advisory"],"url":"https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107457:"},{"source":"CNA: Qt","tags":["patch"],"url":"https://codereview.qt-project.org/c/qt/qtmqtt/+/762286"},{"source":"a59d8014-47c4-4630-ab43-e1b13cbe58e3","tags":[],"url":"https://codereview.qt-project.org/c/qt/qtmqtt/+/762286"},{"source":"a59d8014-47c4-4630-ab43-e1b13cbe58e3","tags":[],"url":"https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107457:"}],"remediation":[],"revision":"ac946497d68e5993fb971d11fcef5a3220aad394c70d1776bac6024c5c4d6036","sources":[{"modifiedAt":1793608692500,"name":"CNA: Qt","retrievedAt":1793610517754,"url":"https://www.cve.org/CVERecord?id=CVE-2026-107457"},{"modifiedAt":1793611056430,"name":"NVD","retrievedAt":1793621812817,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107457"}],"ssvc":null,"status":"published","title":"Memory corruption vulnerability in QMqttClient impacts Qt MQTT","updatedAt":1793621812817}