{"id":"CVE-2025-3512","state":"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.","publishedAt":"2025-04-11T07:39:48.298Z","updatedAt":"2026-07-29T07:29:54.920Z","severity":{"score":4.8,"label":"Medium","version":"4.0","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","source":"TQtC"},"assigner":"TQtC","products":["Qt Qt"],"affected":[{"vendor":"Qt","product":"Qt","defaultStatus":"unaffected","versions":[{"version":"0","status":"unaffected","lessThan":"6.6.0","versionType":"python"},{"version":"6.6.0","status":"unknown","lessThan":"6.8.0","versionType":"python"},{"version":"6.8.0","status":"affected","lessThan":"6.8.4","versionType":"python"},{"version":"6.8.4","status":"unaffected","versionType":"python"}]}],"references":["https://codereview.qt-project.org/c/qt/qtbase/+/635546","http://www.openwall.com/lists/oss-security/2025/04/24/4","http://www.openwall.com/lists/oss-security/2025/04/24/5","http://www.openwall.com/lists/oss-security/2025/04/24/6","http://www.openwall.com/lists/oss-security/2025/04/25/1","http://www.openwall.com/lists/oss-security/2025/04/25/2"],"weaknesses":["CWE-122"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/3xxx/CVE-2025-3512.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-3512","state":"PUBLISHED","datePublished":"2025-04-11T07:39:48.298Z","dateUpdated":"2026-07-29T07:29:54.920Z","assignerShortName":"TQtC","assignerOrgId":"a59d8014-47c4-4630-ab43-e1b13cbe58e3","dateReserved":"2025-04-11T07:12:00.964Z"},"containers":{"cna":{"title":"Buffer overflow in QTextMarkdownImporter","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Qt","product":"Qt","defaultStatus":"unaffected","versions":[{"version":"0","status":"unaffected","lessThan":"6.6.0","versionType":"python"},{"version":"6.6.0","status":"unknown","lessThan":"6.8.0","versionType":"python"},{"version":"6.8.0","status":"affected","lessThan":"6.8.4","versionType":"python"},{"version":"6.8.4","status":"unaffected","versionType":"python"}]}],"references":[{"url":"https://codereview.qt-project.org/c/qt/qtbase/+/635546"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"CLEAR","version":"4.0","baseSeverity":"MEDIUM","baseScore":4.8,"vectorString":"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-122","lang":"en","description":"CWE-122 Heap-based Buffer Overflow","type":"CWE"}]}],"providerMetadata":{"shortName":"TQtC","orgId":"a59d8014-47c4-4630-ab43-e1b13cbe58e3","dateUpdated":"2026-07-29T07:29:54.920Z"},"impacts":[{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100 Overflow Buffers"}]}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"6.6.0"},{"vulnerable":true,"criteria":"cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8.0","versionEndExcluding":"6.8.4"},{"vulnerable":false,"criteria":"cpe:2.3:a:qt:qt:6.8.4:*:*:*:*:*:*:*"}]}]}],"credits":[{"lang":"en","value":"oss-fuzz","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-11T13:47:37.199274Z","id":"CVE-2025-3512","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-11T13:54:46.090Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2025/04/24/4"},{"url":"http://www.openwall.com/lists/oss-security/2025/04/24/5"},{"url":"http://www.openwall.com/lists/oss-security/2025/04/24/6"},{"url":"http://www.openwall.com/lists/oss-security/2025/04/25/1"},{"url":"http://www.openwall.com/lists/oss-security/2025/04/25/2"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-04-25T18:03:41.850Z"}}]}}}