{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6039", "assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2", "state": "PUBLISHED", "assignerShortName": "Document Fdn.", "dateReserved": "2026-04-09T16:29:22.953Z", "datePublished": "2026-06-15T16:21:16.514Z", "dateUpdated": "2026-06-15T18:17:13.933Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2", "shortName": "Document Fdn.", "dateUpdated": "2026-06-15T16:21:16.514Z"}, "title": "Heap buffer overflow in DXF polyline import", "datePublic": "2026-06-15T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-197", "description": "CWE-197 Numeric Truncation Error", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-44", "descriptions": [{"lang": "en", "value": "CAPEC-44 Overflow Binary Resource File"}]}], "affected": [{"vendor": "The Document Foundation", "product": "LibreOffice", "versions": [{"status": "affected", "version": "25.8", "lessThan": "< 25.8.7", "versionType": "25.8 series"}, {"status": "affected", "version": "26.2", "lessThan": "< 26.2.3", "versionType": "26.2 series"}], "defaultStatus": "unknown"}], "descriptions": [{"lang": "en", "value": "LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.</p>"}]}], "references": [{"url": "https://www.libreoffice.org/about-us/security/advisories/cve-2026-6039"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.4, "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P"}}], "credits": [{"lang": "en", "value": "Anthropic (automated discovery using Claude)", "type": "finder"}, {"lang": "en", "value": "Trail of Bits (triage and validation)", "type": "analyst"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-15T18:16:06.325169Z", "id": "CVE-2026-6039", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-15T18:17:13.933Z"}}]}}

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{"bugzilla": {"description": "libreoffice: LibreOffice: Denial of Service via specially crafted DXF polyline import", "id": "2488958", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488958"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-190", "details": ["LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.", "A flaw was found in LibreOffice. This vulnerability, a heap buffer overflow, occurs when processing specially crafted DXF (Drawing Exchange Format) polyline files. An attacker could exploit this by convincing a user to open a malicious DXF file, which may lead to a denial of service (DoS) due to application instability and system unavailability."], "mitigation": {"lang": "en:us", "value": "Users should exercise caution when opening DXF files from untrusted sources. Restricting the processing of untrusted or unverified DXF documents can reduce the risk of exploitation."}, "name": "CVE-2026-6039", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-15T16:21:16Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-6039\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-6039\nhttps://www.libreoffice.org/about-us/security/advisories/cve-2026-6039"], "statement": "This Moderate impact flaw in LibreOffice, a desktop productivity suite, is due to a heap buffer overflow when processing malformed DXF polyline files. An attacker could exploit this by tricking a user into opening a specially crafted DXF file, leading to application instability and potential denial of service. This issue primarily affects desktop environments where LibreOffice is used to open untrusted drawing files.", "threat_severity": "Moderate"}

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