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vuln-cve/data/2026/6xxx/CVE-2026-6047.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-6047",
"assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
"state": "PUBLISHED",
"assignerShortName": "Document Fdn.",
"dateReserved": "2026-04-09T19:21:23.491Z",
"datePublished": "2026-06-15T16:22:37.208Z",
"dateUpdated": "2026-06-15T18:11:48.806Z"
},
"containers": {
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"shortName": "Document Fdn.",
"dateUpdated": "2026-06-15T16:22:37.208Z"
},
"title": "Heap buffer overflow in OOXML text box element 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-843",
"description": "CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')",
"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 documents in the OOXML format (DOCX). A heap buffer overflow existed when replaying deferred parser events for a text box element. A handler object was assumed to be of one type and written to at that type's field layout, but it could be a smaller object, so the write landed past the end of the allocation. In fixed versions the type is checked before the write.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "<p>LibreOffice can import documents in the OOXML format (DOCX). A heap buffer overflow existed when replaying deferred parser events for a text box element. A handler object was assumed to be of one type and written to at that type's field layout, but it could be a smaller object, so the write landed past the end of the allocation. In fixed versions the type is checked before the write.</p>"
}
]
}
],
"references": [
{
"url": "https://www.libreoffice.org/about-us/security/advisories/cve-2026-6047"
}
],
"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": "2026-06-15T18:11:34.358602Z",
"id": "CVE-2026-6047",
"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": "2026-06-15T18:11:48.806Z"
}
}
]
}
}