{"id":"CVE-2026-94370","revision":"ec8bc932e395455b89592b3bed7530c5","records":[{"revision":"ec8bc932e395455b89592b3bed7530c5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-94370","aliases":[],"title":"Memory corruption (double free / use-after-free) vulnerability in core string handling impacts Qt for MCUs","description":"A defect in the Qt for MCUs core string handling causes heap memory corruption. When an application passes text into Qt Quick Ultralite using the public Qul::String interface type, and that text is held in a std::string, the conversion to the internal string type copies the pointer without taking ownership of it. Two objects then release the same memory, producing a double free, an invalid free, or a use-after-free.","state":0,"publishedAt":"2026-10-14T05:43:27.953+00:00","modifiedAt":"2026-10-14T16:02:30.639+00:00","affected":[{"ecosystem":"Vendor product","name":"Qt_for_MCUs","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"qt\",\n                    \"product\": \"Qt_for_MCUs\",\n                    \"modules\": [\n                        \"qul\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2.12.1\",\n                            \"lessThan\": \"2.12.3\",\n                            \"versionType\": \"python\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:H/E:U/S:P/AU:N/R:U/V:D/RE:M","score":6.5,"severity":"MEDIUM"}],"references":["https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-94370:"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-94370","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-94370","identifiers":["CVE-2026-94370"]},"retained":false,"historicalAffected":[]}],"coverage":[]}