{"id":"CVE-2025-3512","aliases":["DEBIAN-CVE-2025-3512","EUVD-2025-10735","GHSA-794f-v4rm-x7r5","UBUNTU-CVE-2025-3512"],"status":"published","title":"Buffer overflow in QTextMarkdownImporter","description":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.\n\nThis issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.","severity":{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00232,"percentile":0.14129,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122"],"published":"2025-04-11T07:39:48Z","modified":"2026-10-28T20:15:33Z","fixes":[{"ecosystem":"Debian:13","package":"qt6-base","fixed_in":["6.8.2+dfsg-6"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"qt6-base","fixed_in":["6.8.2+dfsg-6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:13","package":"qt6-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.2+dfsg-6"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"qt6-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.2+dfsg-6"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"qtbase-opensource-src-gles","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2+dfsg-2ubuntu9","5.5.1+dfsg-6ubuntu1","5.5.1+dfsg-10ubuntu1","5.5.1+dfsg-13ubuntu1","5.5.1+dfsg-13ubuntu2","5.5.1+dfsg-13ubuntu3","5.5.1+dfsg-14ubuntu1","5.5.1+dfsg-14ubuntu2","5.5.1+dfsg-14ubuntu3","5.5.1+dfsg-15ubuntu1","5.5.1+dfsg-16ubuntu1","5.5.1+dfsg-16ubuntu4","5.5.1+dfsg-16ubuntu5","5.5.1+dfsg-16ubuntu6"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"qtbase-opensource-src-gles","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.12.4+dfsg-1build1","5.12.5+dfsg-1","5.12.5+dfsg-2","5.12.8+dfsg-0ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"qt6-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.2.2+dfsg-5ubuntu1","6.2.2+dfsg-6ubuntu1","6.2.2+dfsg-6ubuntu2","6.2.4+dfsg-1ubuntu1","6.2.4+dfsg-2ubuntu1","6.2.4+dfsg-2ubuntu1.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"qtbase-opensource-src-gles","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.2+dfsg-4","5.15.2+dfsg-5","5.15.3+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"qt6-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.4.2+dfsg-18","6.4.2+dfsg-19","6.4.2+dfsg-19build1","6.4.2+dfsg-20","6.4.2+dfsg-21","6.4.2+dfsg-21.1build4","6.4.2+dfsg-21.1build5"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"qtbase-opensource-src-gles","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.10+dfsg-2","5.15.10+dfsg-3","5.15.12+dfsg-1","5.15.12+dfsg-1ubuntu1","5.15.12+dfsg-1ubuntu2","5.15.13+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"qt6-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.8.3+dfsg-0ubuntu2","6.8.3+dfsg-0ubuntu3","6.9.2+dfsg-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"qtbase-opensource-src-gles","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.15+dfsg-2","5.15.17+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"qt6-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.10.2+dfsg-7","6.10.2+dfsg-14ubuntu2","6.10.2+dfsg-15","6.10.2+dfsg-16","6.11.2+dfsg-4ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"qtbase-opensource-src-gles","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.18+dfsg-1","5.15.19+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"qt6-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.9.2+dfsg-1ubuntu1","6.9.2+dfsg-2","6.9.2+dfsg-3ubuntu1","6.9.2+dfsg-3ubuntu2","6.9.2+dfsg-4","6.10.2+dfsg-3","6.10.2+dfsg-6","6.10.2+dfsg-7"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"qtbase-opensource-src-gles","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.17+dfsg-1","5.15.17+dfsg-2","5.15.18+dfsg-1"]}],"products":[{"vendor":"qt","product":"qt"},{"vendor":"the qt company","product":"qt"}],"references":[{"url":"https://codereview.qt-project.org/c/qt/qtbase/+/635546","tags":["web","report"]},{"url":"http://www.openwall.com/lists/oss-security/2025/04/24/4","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2025/04/24/5","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2025/04/24/6","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2025/04/25/1","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2025/04/25/2","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3512"},{"url":"https://github.com/advisories/GHSA-794f-v4rm-x7r5"},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-3512","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-3512","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-3512","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-3512","title":"Buffer overflow in QTextMarkdownImporter","description":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.\n\nThis issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.","status":"published","published":"2025-04-11T07:39:48.298Z","modified":"2026-07-29T07:29:54.92Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear","level":"medium","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:32:39.378527Z"}],"euvd":[{"id":"EUVD-2025-10735","description":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.\n\nThis issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.","status":"published","published":"2025-04-11T07:39:48Z","modified":"2026-07-29T07:29:54Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear","level":"medium"}],"updated_at":"2026-11-02T18:02:30.59681Z"}],"ghsa":[{"id":"GHSA-794f-v4rm-x7r5","title":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an...","description":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.","status":"published","published":"2025-04-11T09:30:24Z","modified":"2025-04-25T18:32:16Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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:X/V:X/RE:X/U:Clear","level":"medium"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:02:02.261137Z"}],"nvd":[{"id":"CVE-2025-3512","description":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.\n\nThis issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.","status":"published","published":"2025-04-11T08:15:15.797Z","modified":"2026-07-29T08:16:29.517Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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:X/V:X/RE:X/U:Clear","level":"medium","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:11:00.087098Z"}],"osv":[{"id":"DEBIAN-CVE-2025-3512","description":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.  This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.","status":"published","published":"2025-04-11T08:15:15.797Z","modified":"2026-09-01T20:05:46.187803022Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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:X/V:X/RE:X/U:Clear","level":"medium"}],"updated_at":"2026-11-02T15:45:45.870237Z"},{"id":"UBUNTU-CVE-2025-3512","description":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow. This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.","status":"published","published":"2025-04-11T08:15:00Z","modified":"2026-10-28T20:15:33.863570801Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Clear","level":"medium"}],"updated_at":"2026-11-02T16:55:28.829873Z"},{"id":"CVE-2025-3512","description":"There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow.This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later.","status":"published","published":"2025-04-11T08:15:15Z","modified":"2026-04-10T05:25:37.532792Z","updated_at":"2026-11-02T15:44:48.02508Z"}]}}